I felt very excited because it was the first time I on the stage.
| A．have acted | B．acted | C．act | D．had acted |
There is no doubt ________ Tom is a good clever boy.
| A．whether | B．if | C．when | D．that |
Almost seven tons of amber__________ the Amber Room.
| A．was used to make | B．was used to making |
| C．were used to make | D．were used to making |
Only when I got here _________ that I had made a big mistake.
| A．did I realize | B．I realized | C．I have realized | D．have I realized |
When they organized the ANC Youth League, he_________ it as soon as possible.
| A．attended | B．joined | C．took part in | D．joined in |
At 3:42 am everything began to shake. In fifteen terrible seconds a large city _____ in ruins.
| A．caught | B．trapped | C．lay | D．stood |