.
It is difficult for any of us to eat better, exercise more, and sleep enough,________ we know we should.
| A．because | B．even if | C．unless | D．before |
Be tough-minded, but tender-hearted, ?
| A．isn’t it | B．are you | C．aren’t you | D．will you |
—Jack, how did itthat you made so many mistakes in your homework?
—I myself haven’t figured it out yet!
| A．come about | B．bring about | C．turn down | D．get down |
—.
—OK. I sometimes have no sense of direction.
| A．Let me help you | B．This way, please |
| C．Here it is | D．No hurry |
My mother hasn’t been to Beijing ,my father .
| A．so ; has | B．neither ; hasn’t | C．nor ; hasn’t | D．but ; has |
I knew nothing about the accident except I read in the newspaper .
| A．that | B．what | C．which | D．whether |