Who helped you repair your bike?—________ ! I repaired it all by myself.

My bike is broken. May I borrow？

Mr Li looks often looks tired and worried? — So he does. You see it’s not easy to such a big factory.

How can I get there?—Take the elevator __ the fourth floor. [ ]

Who bought you this snow globe? .—My sister gave it_____ me_____ mytenth birthday.[ ]