用所给词的适当形式填空。 

1. He asked me ______ (go) to the zoo.

2. Susan likes pop music, but her brother ______ (not, do) .

3. He wants ______ (join) school soccer team.

4. Mr Green hopes ______ (come) to China some day.

5. Helen never ______ (go) to Beijing.

天平的检定分为两个部分：一是（）二是（）。