— Why didn’t you go to the party last night?

— Because my parents were busy and I had to 　　　 my little brother at home.

A. look after        B. look at           C. look around 

从A.B.C.D中找出并能替换划线部分的选项

1.Mum has a bad headache. We have to send for the doctor at once.

A. ask the doctor to come　　　　 B. find the doctor by ourselves

C. send the doctor away　　　　　 D. go to the doctor's

2.I have just come across a beautiful poem in this book.

A. read aloud???? B. written down???? C. discovered????? D. went through

3.The fire broke out at 5 o’clock early in the morning.

A. stopped?????? ????????????? B. started?????????? C. opened???? ????????????? D. closed

4.They’ll be here in ten minutes. Meanwhile, we’ll have some coffee.

A. after all???????? B. at the same time?? C. for a minute?? ????????????? D. before long

5.You will find a basket filled with flowers in your room.

A. had?? ??????? B. covered??????????? C. was full????? D. full of

---Why don't you go to the lecture-room and listen to the talk?
　---I hear there isn't ________in it.

---Why don't you go to the lecture-room and listen to the talk?

　---I hear there isn't ________in it.