—Shall I help you carry your travel case to the train ,Granny? —Oh,no,my boy.It is heavy.Thank you anyway.
— It is rather cold here. Shall we light a fire? — No, we______because things are easy to catch fire.
Even though I’d hurt my leg, I______swim back to the river bank.
—Do you think he will do me a favor? — As far as I know, he is the last one to help others. He______be prepared to give you a hand, though.
Hurry up,Tom.It’s high time we______ to the theater.
What ______ had Bob walked farther, as far as the river bank?