My wife wants a Mexican carpet，but she can’t afford to buy _______.
| A．one | B．it |
| C．them | D．the one |
--What did you think of president?
--I didn't care for him at first, but after______time I got to like him.
| A．不填； a | B．不填； the | C．the; the | D．the; a |
Please keep______ secret that he’ s decided to give up his present position.
| A．one | B．it | C．this | D．that |
Military helicopters dropped food and medicine to the earthquake survivors that remained
in remote mountain villages.
| A．laid off | B．paid off | C．put off | D．cut off |
We still remember once round the famous tower when we were young.
| A．having taken | B．to be taken |
| C．to have taken | D．having been taken |
She knew she had to calm and still until the enemy went away from her hiding cave.
| A．become | B．feel | C．keep | D．turn |