根据句意选择与句中画线部分意思相同或相近且能代替的选项。

1.—What are you doing now?

   —I'm babysitting my sister.     

A. looking after    

B. playing with    

C. looking at    

D. looking for

2. I'm visiting my grandparents in the countryside. 

A. gomg to see    

B. seeing    

C. sightseeing    

D. meeting

3. Well, enjoy yourself in your Vacation.     

A. have a rest        

B. have a good meal

C. have a hard time    

D. have a good time

4. What's the weather like in Italy?    

A.What's the weather            

B. How is the weather

C. What do vou think the weather    

D. How does the weather

5. What about going to the movies?      

A. Let's        

B. Would like

C. How about   

D. Shall we

至少说出3种TD-SCDMA系统可以提供的业务。