---I’m sorry I can’t do it.---___________.
I'm going to ________ in the sea. A.swim B.swimming
Sam is from ________. A.England B.English
I'm going to get up ________ 6 o'clock. A.on B.at
We're going to go ________ train. A.in B.by
We're going to go to Beijing ________. A.yesterdayB.tomorrow