--I’m sorry I ______ my exercise book at home.---Don’t forget _______ it to school tomorrow, please.
—What’s the time by your watch? —It’s ________.
I hear ________ students went to the hall to have the concert.
My sister is only four years old, but she can look after ________ now.
This term, we have ________ new subject—physics. It’s interesting.
— Mr. Brown, please teach me how to draw on the computer today. — Oh, no hurry. _________. You have to get familiar with the keyboard first.