________ the question of how global warming has _________, we are doing some projects at school.
A.Exploring, come about | B.To explore, come out |
C.Having explored, come to | D.Being explored, come over |
Eye doctors recommend that a child's first eye exam ________ at the age of six months old.
A.was | B.be | C.were | D.is |
My mom suggests that we ________ eat out for a change this weekend.
A.should | B.might | C.could | D.would |
—Do you think George has passed the driving test?
—No.If so,he ________ his car to our college yesterday.
A.would drive | B.drove |
C.would have driven | D.had driven |
If we________a table earlier, we couldn't be standing here in a queue.
A.have booked | B.booked |
C.book | D.had booked |
The door________open,no matter how hard she pushed.
A.shouldn't | B.couldn't | C.wouldn't | D.mightn't |