—When did you start to collect stamps?—I got my ______ stamp when I was ______ years old.
Mum prepares breakfast for us every morning, so she __________ early.
We are disappointed why _______ few students could make _________ a wise decision.
How about _______ a scarf ?A. buy B. buying C. to buy
He asked his father ________?A. where it happens B. where did it happen C. how it happened
The teacher encourages her students _____ English as much as possible. A. to speak B. speaking C. speak