[单项选择]It was an uphill work, we have to discuss it beforehand.（）
A. 由于这是一件上山的工作，我们应该先商量。
B. 因为这件事情办起来很困难，我们得事先讨论一下。
C. 既然这件工作就是爬山，我们先干然后讨论。
D. 当办这件事很费力时，我们就得先讨论如何办。

[单项选择]We have to work even harder though we feel quite ______ our success.


A. secure of
B. nervous about
C. worried about
D. competent for

[单项选择]We have to do this uninteresting work ______ we like it or not.
A. no matter
B. either
C. whatever
D. whether

[单项选择]Since their method doesn't work, we can（）other measures.
A. fall on
B. fall down on
C. fall back on
D. fall in upon

[单项选择]

After a day’ s hard work, we need some sleep. During the sleep, the fatigue(疲劳) of the body disappears and recuperation(恢复) begins. The tired mind gathers new energy, and the memory improves.
Some adults require little sleep; others need eight to ten hours in every twenty-four hours. Infants(婴儿) sleep sixteen to eighteen hours daily, the amount gradually diminishing as they grow older. Young students may need twelve hours; university students may need ten. A worker with a physically demanding job may also need ten, whereas an executive working under great pressure may manage on six to eight. Many famous people have little sleep. Napoleon Bonaparte, Thomas Edison and Charles Darwin apparently averaged only four to six hours a night.
Whatever your individual need, you can be sure that by the age of thirty you will have slept for a total of more than twelve years. By that age you will also have developed a sleep routine: a favorite hour, a favorite bed,
A. that they were famous
B. that they were executives
C. that they were intelligent
D. None of the above