By boat is the only way to get here， which is _______ we arrived．（ ）
| A． |
where |
B． |
when |
C． |
why |
D． |
how |
He was very nervous in the contest．Otherwise，he _____________ the first prize．
| A．will win | B．would win |
| C．would have won | D．had won |
I didn’t know that he was a cheat, or else I ________________ him.
| A．should have believed | B．shouldn’t believe |
| C．wouldn’t have believed | D．couldn’t believe |
________ the present unemployment continue, the society would face a more
troublesome situation.
| A．Would | B．Should |
| C．Might | D．Could |
I forget where I learned the saying, or I _____ it to you now.
| A．will show | B．would show |
| C．am going to show | D．am showing |
—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 |