—Tom, you look tired this morning. What’s wrong?—I was so busy that I didn’t go to bed________12 o’clock last night.
He asked me______________.
Loud music and other noises can annoy neighbors, _________ at night.
---How was _________ dinner at Li Lei’s house? ---It was great. Li Lei’s mum is ________ wonderful cook.
The people there are surfing the Internet, ______?
________ of the students in our class is 64, and ________ of them are girls.