用所给单词的正确形式填空
1. What _________ (do) you know about the Olympic Games?
2. _________ (do) you watch the Olympic Games on TV?
3. The Olympic Games take place every four _________ (year).
4. There are five _________ (ring) on the Olympic Flag.
5. We can see _________ (swim) at Summer Olympics.

I ______ a big pizza yesterday. (    )

A．eat

B．ate

C．eated

选择恰当的单词，补全句子。
is  are  was  were  be
【小题1】There ______ an apple on the table yesterday.
【小题2】There ______ an apple and two pears on the table.
【小题3】There ______ two apples and one pear on the table.
【小题4】There will ______ an apple on the table.
【小题5】There ______ some apples on the table yesterday.

What did you do ___ weekend? (   )

A．next

B．last

C．this

Then he comeback to the earth.（_______）改为___________
A B C