- How many are there in your classroom?- There are twenty.
—Why was your class so lively,Mr.Li? —Oh,my students________in groups about the coming school trip.
—The windows are broken and need to be repaired. —I think so.They can hardly________the cold now.
Most people are________building a paper factory near here.They are worried the river will get polluted.
If there________no buying and selling of animals,there will be no killing in nature.
—Liu Ming,is that our headteacher Miss Chen over there? —It can’t be her.She________Xiamen for a meeting. A.has been to B.has gone to C.has been away