The teacher found him ________ and gave him some different homework to do every day.

limbing is a breathtaking activity, very popularnationwide among young people, ______ cooperation as well as courage plays animportant role

“What a terrible rain we are having!” “YesWe are asked to pay more attention to the information about the rain ______ flood.”

Half of the class _____ done most of the work ．The left _____ rather difficult．

We’d better discuss everything ______before we work out the plan.