— How is your sister?
— She _______ quite good after the operation, but she is taking a turn for the worse today.
| A．felt | B．feels | C．had felt | D．has been feeling |
Has ________ been decided when we are to hold the sports meeting?
| A．that | B．he |
| C．it | D．what |
The doctor kept telling him that he mustn’t smoke, but ________ didn’t help.
| A．he | B．which |
| C．it | D．they |
Don’t leave your keys in the car. Someone might steal ________ 。
| A．one | B．that |
| C．this | D．it |
Computers must be of great use to ________ doing the scientific research.
| A．these | B．whoever |
| C．those | D．whomever |
At the shop, they wanted to show me all the dresses, but I was interested only in ________ in the window.
| A．this | B．that |
| C．it | D．the one |