. I'd really appreciate ________ if you would turn off the lights before you leave.
A.you |
B.that |
C.as |
D.it |
It never _____ humans until the mid1990s that some animals can be cloned.
A.occur |
B.is occurred |
C.occurred to |
D.occurred |
If you _____ his wife’s income____ his own,the total of their income _____ 3000 yuan.
A.add; to; will add up to |
B.add; to; adds to |
C.add up; to; adds up to |
D.will add; for; adds up |
Is it a wonder that ____little cells can store much energy?
A.so; so |
B.so; such |
C.such; such |
D.such; so |
As a senior high student, you should your energy on how to master the skills of learning.
A.impress |
B.spend |
C.concentrate |
D.use |
— May I help you?
— Yes, I'd like to try on some sports jackets just like I'm wearing.
A.it |
B.one |
C.the one |
D.that |