[单项选择]He must have been very hard to please, indeed, if he did not approve the salary of he job.
A. if he had not approved
B. if he is not approved of
C. if he not approves
D. if he had not approved of

[单项选择]

W: Jack must have been joking when he said that he was going to quit his job.
M: Don’t be too sure. He told me that he was trying to sell his house.

What can we assume from this conversation（）
A. The man is a judge
B. It’s an interviewer
C. The man agrees with the woman
D. The man believes that Jack will quit his job

[填空题]He has been working very hard and his schoolwork has shown much ______ (improve) since last term.

[单项选择]There must have been someone who has instigated a rebellion because the people are so well organized.
A. incited
B. tampered
C. intruded
D. meddled

[单项选择]Such a proposal must have been put forward by people with limited____.
A. outlook
B. overlook
C. outline
D. overview

[单项选择]He had studied hard, he would have been able to pass the exam.（　）
A. He had studied harder
B. If only he studied more
C. Had he studied harder
D. When he studied more

[填空题]Airlines have been hit hard this year by a rise in the price of jet fuel, ______ (比2008年增长了80%).

[单项选择]

I have been very lucky to have won the Nobel Prize twice. It is, of course, very exciting to have such an important (1) of my work, but the real pleasure was in the work itself.
Scientific research is like an exploration of a voyage of discovery. You are (2) trying out new things that have not been done before. Many of them will lead (3) and you have to try something different, but sometimes an experiment does (4) and tells you something new and that it is really exciting. (5) small the new finding may be, it is great to think "I am the only person who knows this" and then you will have the fun of thinking what this finding will (6) and of deciding what will be the (7) experiment.
One of the best things about scientific research is that you are always doing something different and it is never (8) . There are good times when things go well and bad times when they (9) Some peop
A. anywhere
B. nowhere
C. everywhere
D. somewhere