The college education system should be reformed ______ it can follow the pace of the
economic development.
| A．so long as | B．so that | C．only if | D．even though |
----Will you go to Tom’s 18th birthday party?
----If you go, ___________.
| A．nor do I | B．nor I do | C．so will I | D．so I will |
The reason why I burst into tears is _________ I don’t want to part with my mother.
| A．that | B．because | C．what | D．which |
——Would you mind if I keep the door open?
——____________.
| A．Yes, do it | B．No, of course not | C．Yes, go ahead | D．No, you can’t open it |
In the north people sometimes tie straw ropes (草绳) round the trees in winter to ______ them from the cold.
| A．stop | B．prevent | C．save | D．protect |
It’s time that you __________ the whole book.
| A．must go over | B．can go over | C．went over | D．have gone over |