用动词和适当形式填空

1．My son wants ________ (be) a doctor when he finishes school．

2．Don't ________ (arrive) late for school．

3．Where ________ (be) Li Lei last week?

4．Please ask the children ________ (not,play) football in the street．

5．－Where are they?

－They ________ (play) football at school．