—Will people live to be 200 years old? —____________.
—What do you usually do in the morning?—I often practice ________ English.A.speakB.to speakC.speaking
He has to be ________ bed ________ nine o’clock.
I have ________ homework to do this evening.
—Dad,must we wait until the light becomes green?—Yes,I’m afraid we ________.That’s the traffic rule.
—It is rather cold here.Shall we light a fire(点火)?—No,you ________,because things here are easy to catch fire.