8． Don’t worry. The performances _willbegin__________(begin) in half an hour.
10． The teacher_was writing_________(write) on the blackboard while the students _were taking______(take) the notes.
11. He _reads_______(read) a science fiction story then.
12． When I __________(enter) the meeting hall, the headmaster__________(award) the prize winners.
18． The little child __was sleeping________(sleep) when his mother came________(come) into the bedroom.
31． I’m afraid I __not to be_______(not be) able to finish the job in time without your help.
35． While Father _was tell______(tell) me a story about the Sleeping Beauty, it __was been on ____(begin) to rain.
错了的请找出来，并写出正确答案，在说明理由！
11.read 他之后读了一本书,表示已经发生的事情，过去时比较好12.entered（瞬间动作） /was awarding 当我进进入房间时，他正在颁奖（进行中的动作）31. am not to be 35.was telling,hadbugun（前面WHILE说明动作在进行，后面是雨在那时已经开始下了，所以过去完成市，雨是自己下的，不用被动 ）
