I just wonder _______ that makes him so excited.
| A．why it does | B．what it does | C．how it is | D．what it is |
Besides Tom, ________ Crosettes have two other sons, __________ of whom are all interested in making model planes.
| A．不填; two | B．不填; the two |
| C．the, three | D．the, the three |
Nobody noticed the thief slip into the house because the lights happened to__________.
| A．put up | B．give in | C．be turned on | D．go out |
If I had__________ , I’d visit Europe, stopping at all the small interesting places.
A. a logn enough holiday B an enough long holiday
C. a holiday enough long D. a long holiday enough
The news about the terrible flood there greatly discouraged __________ there for a sightseeing.
| A．us from going | B．us to go | C．our going | D．our to go |
He's unlucky,and he's always suffering____________ luck one after another.
| A．a sick | B．an ill | C．sick | D．ill |