Ben ______ going to have a picnic this weekend. (   )

A．am

B．are

C．is

用括号里单词的适当形式填空
1. When I am ________ (do) my homework, my mother is ________ (cook).
2. He has to _________ (travel) the country in search of work.
3. How __________ (do) seeds travel?
Seeds _________ (travel) in many ways.
4. What _____ (be) they talking about?
They are _________ (talk) about the seeds of plants.

They  in a spaceship.

A．were

B．was

C．had

根据句意用单词的正确形式填空。
1. Everyone ______ ( be ) twelve years old.
2. Li Yan’ s father is ______ ( doctor ).
3. ______ ( I ) mother is a teacher.
4. We _____ ( be ) in New Century Primary School.
5. We have seven ______ ( subject ) at school.

There ______ many animals at the farm. (   )

A．is

B．are

C．am