After the quarrel, I tried all my best to fix the misunderstanding between us, but all my efforts seemed _____.
| A．in trouble | B．in case | C．in effect | D．in vain |
What do you think of his suggestion __________ we organize a football club?
| A．which | B．whether |
| C．that | D．what |
The students __________ in character are quite similar in their interests.
| A．differ | B．different |
| C．difference | D．who is different |
—Excuse me, what time __________ the train __________ ？
—At 8：10 tomorrow morning.
A. does ；pull out B. do ；pull in
A good friend of mine from __________ I was bom showed up at my home right before I left for Beijing.
| A．how | B．whom |
| C．when | D．which |
The headmaster will __________ a speech to the visiting foreign guests this afternoon.
| A．deliver | B．address | C．announce | D．declare |