Some students in Shanghai e-bags for several months.
--- ________ do you help your mother clean the house? --- Once a week.
Tina ________ England with her parents three years ago.
--- Must I hand in my report now? --- No, you ________. You still have some time.
I need ________ bananas to make fruit salad. Could you please buy some?
Tom got all A’s ________ he spent most of his time studying.