1 . You will be able to keep healthy only if you take regular exercise. (同义句改写)
Only if you take regular exercise __________ ___________ ___________ able to keep healthy.

2 . Not only ____ the data fed into it, but it can also analyze them.

A．the computer can memorize	B．can memorize the computer
C．do the computer memorize	D．can the computer memorize

3 . 许多高三学生每天如此专注刷题以至于没有时间反思自己在作业中所犯的错误。(So) (汉译英)

4 . ________ did I accept this unreasonable suggestion.

A．By no means

B．By all means

C．By means of

D．By this means

5 . 他没有主意，也不知道可以向谁寻求帮助。（部分倒装）
He had no idea, and ________ he could turn to for help.

6 . Only when people have enough to eat and plenty to wear ________ to talk about environmental protection.

A．it makes sense	B．does it make sense
C．that it makes sense	D．do they make sense