Busy as he is, he ______ a few hours for exercise every day.
| A．sets off | B．sets about |
| C．sets down | D．sets aside |
You'd better do it ________ your mother did.
| A．when | B．as | C．like | D．because |
______ they are brothers, they don't look like each other at all.
| A．Because | B． Though | C．When | D． As |
--- When did you know the news?
--- I knew nothing about it _________ my friend told me.
| A．after | B．it | C．because | D．until |
The question ______by us soon.
| A．is going to discuss | B．will discuss |
| C．is going to be discussed | D．has been discussed |
The old man was quite weak after the accident, so he______.
| A．must look after | B．must be taken care |
| C．must be looked after | D．must take care of |