Thank you for the trouble you have ____ to help me.
| A．paid | B．taken | C．had | D．asked |
When Madam Curie did the science experiment again, she was more careful ________ she had made a mistake.
| A．what | B．when | C．which | D．where |
French author Le Clezjo, a brilliant novelist as a child of all continents, won the Nobel Prize in literature in October, 2008.
| A．honored | B．honoring |
| C．being honored | D．having honored |
Hurry up! By the time we get to the church, the marriage service _____.
| A．had started | B．will have started |
| C．has started | D．must have started |
Mr. Frank asked me I could go with him to he called the Treasure House the next week.
| A．that; which |
| B．whether; that |
| C．whether; wha |
| D．that; where |
The main street is lined with small stands and shops _____ sell almost anything you can imagine.
| A．what | B．where | C．who | D．which |