For the Turner sisters and their classmates，taking a parttime job might ______ their time for study.
| A．cut off | B．cut into | C．cut down | D．cut away |
They ________ my ability to solve problems, but I have proved that they are all wrong.
| A．opposed | B．doubted |
| C．wondered | D．ignored |
My patience is ________. Don't keep me waiting any more.
| A．gathering up | B．breaking out |
| C．running out | D．keeping up |
Growing up ________ Michael Jordan was in his prime，Beijing native Wu You knew what he wanted to do.
| A．since | B．when |
| C．until | D．before |
It ________ have been her to leave her child alone and do whatever she wanted. She isn't such a person.
| A．couldn't | B．mustn't |
| C．mightn't | D．wouldn't |
Microblog is a platform ________ people can express their thoughts, show their daily life and communicate with each other by sending post.
| A．what | B．which | C．where | D．when |