A big earthquake __________7.1 on the Richter scale struck Yushu, knocking down buildings and causing more than two thousands people to lose their lives．
| A．measured | B．measuring | C．to be measured | D．measures |
Although punctual himself, the professor was quite used ________ late for his lecture.
| A．to have students | B．for students' being | C．for students to be | D．to students' being |
.When people move to another country, they often try ________ the customs of their native land.
| A．to keep on | B．to keep off | C．to keep up | D．keeping up |
The experiment is of particular importance.
—I see. We will carry on with it ________ we can get enough money.
| A．unless | B．though | C．whether | D．until |
.I think that this meal was well worth ________ was charged for it.
| A．that | B．what | C．which | D．how many |
________ all over the hills and around the lake are wild flowers of different kinds.
| A．To grow | B．Growing | C．Grown | D．Grow |