问题
I regret ______ that I’m too busy ______ in the talk.
A:to say, to participate
B:saying, participating
C:to say, participating
D:saying, to participate
B:saying, participating
C:to say, participating
D:saying, to participate
正确答案是：
同类题型
The newly ________ president is going tocarry out a series of projects in many fields.
from home, which one could hardly imagine, has beenmade with the development ofcomputer technology.
Many Chinese universities provide scholarships for students _____financial aid
Jack used to ________ to school.—-Yes, but now he’s used to ________the bus.