:一、根据开头字母，补全单词
1. Do you
know who the computer was i _______by?
2. The seat
belt on a plane are a _______.
3. It was a
big m________ to leave my umbrella at home.
4. A c______
is a hundred years.
5. Boys,
stop t_____ stones to the poor dog.
二、单项选择
1. The
bridge __________ by the farmers themselves in 1982.
A. built
B. was built
C. build
D. was build
2. All the
books will _______ to the children who live in the small village.
A. be sent
B. sent
C. be send
D. send
3. Keys
_______ used for ______ the doors.
A. is,
opening
B. is,
opened
C. are,
opening
D. are
opened
