Only after Mary read her composition the second time the spelling mistake.（2012 .天津）
| A．did she notice |
| B．she noticed |
| C．does she notice |
| D．she has noticed |
.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 |
Although he sometimes loses his temper, his students like him ________ for it.
| A．not so much | B．not so little | C．no more | D．no less |