找出下列单词中拼写有误的一个，将其序号写在题前括号内。
| （ ）⑴ |
A. think |
B. green |
C. cass |
| （ ）⑵ |
A. chair |
B. banane |
C. black |
| （ ）⑶ |
A. head |
B. good |
C. rular |
| （ ）⑷ |
A. duck |
B. pencl |
C. please |
| （ ）⑸ |
A. six |
B. glass |
C. bog |
( )—Let’s play basketball on Sunday.
—__________.
| A．That’s a great idea | B． You’re welcome |
| C．That’s right | D．No, please |
( ) To be a good swimmer, I must have lessons.
| A．swim | B．swimming | C．to swim | D．swims |
( ) Let me __________ the teacher to help answer the question.
| A．ask | B．to ask | C．asks | D．asked |
( ) This is an __________ to the cinema.
| A．invitation | B．invite | C．invites | D．invited |
( )一Let’s help our teacher carry the heavy bag.
—__________.
| A．Yes, please | B．Yes, let’s do it |
| C．Not at all | D．No, thanks |