______ is your mother?—She’s forty.[ ]

I called you yesterday evening, but there was no answer. —– Oh, I’m sorry. I _____ dinner at a restaurant at that time.

What should I do when the earthquake happens, Dad?—First of all, it’s important to _________ and hide yourself in the corners of the room.

I always________ my brother at chess. But I don’t do so ______ as him in basketball.

Although you may meet some difficuIties,you should never．