用所给词的适当形式填空，使句意完整、正确。(10分)
（1） Shall we __________________ ( start ) our lesson now?
（2） Who would like ___________________ ( read )the new words?
（3） Let _________(she) ____________(clean ) the classroom.
（4） Did you see the bird ______________(fly) yesterday?
（5） --How many _________________ ( play ) are there in your class? --There are five.