He wants to be a doctor when he ________. 

“Learning from Lei Feng Day” is only two weeks from now. We need to ________ a plan about it.

— Do you have any plan for this summer vacation, Mary?— Sure, I’ d like to be a volunteer and help to ______ the Central Park. 

His doctor had advised him ___________ smoke, and later his mother made him ________ buying more cigarettes.

I’d rather      TV at home than   shopping with you．