The first use of atomic weapons was in 1945.And their power _______ increased enormously ever since.
| A．is | B．was |
| C．has been | D．had been |
Yao Ming soon became part of the national team.
| A．a | B．the | C．an | D．\ |
Although it ________ as hard as ____stone, it easily melts when ______.
| A．feels…\...heated | B．feels…a...heated |
| C．is felt…a...heated | D．feels…\...heating |
Our English teacher is ill, and we are all ______ her health.
| A．careful of | B．concerned about | C．interested in | D．calm about |
Mrs. Johnson, our neighbor, often ______ the dog in the park after supper.
| A．watches | B．takes | C．keeps | D．walks |
They soon ______ doing the same thing day after day, and finally gave up.
| A．got tired of | B．got along with | C．got away from | D．got down to |