Whose hat is this? — I think it can’t be John’s or Kate’s. It’s much too small for __________.
Some of my classmates don’t like math because they think it’s boring.— I don’t like it, _____. I think it’s too difficult.
What do you do __________ National Day?[ ]
________ we go swimming in Xishuanghu Lake today? —- Oh, no. It’s ________ cold to swim on such days. I will catch a cold.
Drunk driving is against the law now. It ______ be forbidden.