As many people do, you often pretend ________ work when actually you are just wasting time online.

________what we can do, we’ll have to decrease our dependence on oil and reduce our overall energy consumption.[ ]

(2013·开封高三第一次模考)—Did Ann fail in English?—She ________.Don’t you notice that she looks depressed?

I ________ an engineer when I grow up.

An old friend of mine see me tomorrow.