While ____ in the room, we were all very excited.
A: waited
B: waiting
C: to wait
D: wait
A: waited
B: waiting
C: to wait
D: wait
举一反三
- While ______ at the bus stop, we saw three buses go by in the oppositedirection. A: waited B: waiting C: being waited D: wait
- 完形填空 A: wait B: waited C: waiting D: to wait
- I did nothing but______ (wait) for you. A: to wait B: waited C: waiting D: wait
- Lucy, there is someone ________ for you at the door. A: wait B: waited C: waiting D: to wait
- They are likely ______at the station. A: wait B: waited C: to be waiting D: to be waited