Every book ______ from the library should be returned on time．
A．borrow B．to borrow
C．borrowing D．borrowed
My sister has a habit of keeping a diary and writes down ______ happens every day．
A．how B．when
C．which D．what
The cinema ______ ten years ago when we first moved to this town．
A．built B．has built
C．was built 
D．would be built
______ a new house is impossible for the young couple because they haven't saved enough money．
A．Buy B．Buying
C．Bought D．Having bought
It is believed ______ children should learn to be responsible from the very beginning．
A．why B．how
C．when D．that
—Do you have any plan for this Sunday?
—Yes, I ______ shopping with my friends．
A．go B．am going
C．went D．have gone
