24．—Guess what! I have got A for my term paper.
—Great! You _______ read widely and put a lot of work into it.
| A．must | B．should | C．must have | D．should have |
13. His plan is such a good one ____ we all agreed to accept it.
| A．as | B．and |
| C．that | D．so |
He was so busy. He cannot afford enough time with his son _____ he wants to.
| A．even if | B．as if | C．because | D．before |
Someone is ringing the doorbell. Go and see ____.
| A．who is he | B．who he is |
| C．who is it | D．who it is |
smooth
| A．youth | B．strength | C．thunder | D．worthy |
really
| A．breathe | B．thread | C．theatre | D．ocean |