---- How long do you suppose it is ________he arrived here ?
-----No more than half a week ．
| A．since | B．before | C．after | D．when |
The teacher talked with Jack, _______ problems was poor study habits.
| A．whose | B．which |
| C．one of whose | D．one of which |
It will really make no difference ________ he doesn’t come tonight.
| A．if | B．whether | C．that | D．what |
---Excuse me, Miss. May I share your table?
---Of course. _________.
| A．Not at all | B．Be my guest |
| C．I don’t mind | D．I’m with you on that |
He really can’t understand _________ he said was wrong.
| A．what | B．how | C．that what | D．why what |
Expect everything to go wrong in advance, ________ you may feel at a loss when it does.
| A．or | B．and | C．but | D．so |