. The doctor was so kind that he devoted all his spare time he had _______the poor boy.
A. to helping B. helped C. helping D to help
As a student, you should try to ______ being late for your class.
| A．avoid | B．refuse | C．prevent | D．punish |
This is ______ difficult problem that few students can work it out.
| A．so | B．so a | C．such | D．such a |
A notice was ________ in order to remind the students of the changed lecture time.
| A．sent up | B．given up |
| C．set up | D．put up |
This is not a match. We’re playing chess just for ______.
| A．habit | B．hobby | C．fun | D．game |
They made the longest sofa in the world. It is ten times ______ the ordinary ones.
| A．the length of | B． so long as |
| C．much longer than | D．as length as |