Do you mind my opening the window for awhile—_______

I didn’t see her yesterday.—Of course, you _____, because she had gone to a trip.

_______ makes me feel worried is _______ singing stars are centered on by masses of teenagers today.

So hard _____ in the past few months that he has made great progress in English.—I can see that; only a few mistakes _____ in the exam.

he post fell _______, Dennis Bass was appointedto fill it.