[填空题]When (ask)_______why he came to the exhibition, he said that he had been interested in oil paintings for years.

[填空题]When (ask) （） why he came to the exhibition, he said that he had been interested in oil paintings for years.

[填空题]When (ask) ______ why he came to the exhibition, he said that he had been interested in oil paintings for years.

[单项选择]He was rather (vague) about the reasons why he never finished school.
A. bright
B. unclear
C. general
D. bad

[单项选择]When （　） why he walked in without permission, he just stared at us and said nothing.
A. asking
B. asked
C. being asked
D. to be asked

[简答题]When he came to, he found himself _______________ (躺在一个陌生人的房间里).

[单项选择]Why does the guide ask the student if he likes sports
A. Biology students have their own sports teams.
B. There is limited access to sports on campus.
C. The athletic center is close to the biology building.
D. There is a football game about to begin.

[简答题]One might ask why speculation is permitted when there is so real a danger of loss. The basic reason is that speculation can perform useful functions in the economy. Buying a commodity or stock, in the belief that prices will rise speeds market equilibrium and encourages faster entry of more suppliers. If the price change lagged until after an actual commodity shortage had occurred, the fluctuation would probably be sharper and more sudden. Remedial supply action could not be further delayed. Similarly, if speculators foresee a surplus in some commodity, their selling of futures will help drive the price down to some extent before the surplus actually occurs. When speculators foresee a shortage and bid up the price, they are also helping to conserve the present supply. As the price goes up, less of the commodity is purchased; a rise in price encourages users to economize. Similarly, a lowering of price encourages users to buy more, thus helping to sell the surplus which is developing.

[单项选择]He had a bad cold. （　） is why he didn't come.
A. It
B. This
C. That
D. What

[填空题]He made no ______ (explain) about why he acted so rudely to his wife last night.

[多项选择]The reason why he applied for a job abroad was to earn more money.
So that he ______

[单项选择]Ask why most people are right-handed, and the answer might fall along the same lines as why fish school(鱼成群地游). Two neuroscientists suggest that social pressures drive individuals to coordinate their behaviors so that everyone in the group gets an evolutionary edge.
Approximately 85 percent of people prefer their right hand, which is controlled by the left hemisphere of the brain. One theorized benefit of locating a particular function in one hemisphere is that it frees the other to deal with different tasks. But that idea does not explain why. population-wide trends for handedness exist in the first place.
Moreover, evidence gleaned in recent years has overturned the long-held belief that human handedness is a unique by-product of brain specialization attributable to language. A suite of studies has revealed brain lateralization in species from fish to primates(灵长类). Last August, for instance, scientists discovered that in the wild, chimpanzees show hand preferences.
Th
A. it was a necessary evolutionary process
B. it has something to do with human right-handedness
C. they need to coordinate with other fish
D. their brain function is unique