Have you ever had a case ______ the opinion you had stuck ______ turned out wrong.
| A．where; to | B．which; with | C．that; in | D．where; out |
This work, when we find it and do it----_________only as a hobby at first---is a key to our true happiness.
| A．even if | B．only if | C．as if | D．if however |
.The vocabulary and grammatical differences between British and American English are so few and unimportant as hardly______.
| A．noticed | B．to notice | C．being noticed | D．to be noticed |
Nowadays, many young people have no idea how to get to_____they want to go.
| A．which | B．Where | C．the place which | D．there |
The declaration____saving the rivers and giving people their traditional rights over them.
| A．calls for | B．calls up | C．calls off | D．calls in |
.Young________, he already knows what career he wants to follow.
| A．though is he | B．though he is | C．he is though | D．is he though |