I suggested he work out a new plan but he didn’t ________it.
| A．respond to | B．respond |
| C．make response | D．in response to |
—Sorry, I forgot to lock the door.
—______ Mike can do it later.
| A．No way | B．Take your time |
| C．Nothing serious | D．You're welcome |
—Do you know ____ made him successful in his career?
—Yes. His hard work and determination, of course.
| A．what it was that | B．what was it that |
| C．it was what that | D．was it what that |
With many cities in China dreadfully blanketed by thick haze, the environment problem is _____ Chinese people concern most nowadays.
| A．what | B．which | C．where | D．when |
The doctor tried to laugh my brother ____ his fears about the coming operation.
| A．from | B．against | C．off | D．into |
—Did you manage to get in touch with David?
—No, I didn’t. I ______ him up, but there was no answer.
| A．ring | B．rang |
| C．will ring | D．would ring |