Only after the woman had her own child ________ how difficult it was to be a mother.
| A．she realized | B．had she realized | C．she had realized | D．did she realize |
More money and effort should be spent to _______ the cultural relics in the world.
| A．keep | B．remain |
| C．preserve | D．support |
In communication, a smile is usually _____ strong sign of a friendly and _____ open attitude.
| A．the; / | B．a; an | C．a; / | D．the; an |
Surrounded by the armed police and having no way to escape ,the rebels (叛乱者) in Xinjiang Autonomous Region were forced to _____
| A．give up | B．give away |
| C．give in | D．give out |
It was the third time that she ______to this mountain village to see the children.
| A．has come | B．had come |
| C．came | D．would come |
I can well remember that there was a time _____I played sports with my close friends in junior school.
| A．what | B．which | C．that | D．when |