—Just now your boy fell over.
—Yes. Thanks to that young man. He raised his arm to protect my boy.
A.to keep…calm B.to keep healthy C.to keep… safe
—Look! What a dirty river!
—Some people pollute this river.
A.make a mess B.make…dirty C.make…clear
—Things are getting worse and worse.
—This could be bad for US industry.
A.be weak in B.be poor at C.be harmful to
— Can you complete the work today?
—I am afraid not. It’s a little difficult for me to do it by myself.
A.manage B.finish C.prepare
—We are in great need of food now.
—Don’t worry. They will provide some food for us soon.
A.offer…to… B.supply…for…. C.offer…for
—When the police arrived, the thieves were out of sight.
—What a pity!
A.appeared B.couldn’t see C.disappeared
