28．Usually，when we see our teachers come into the classroom，we all stop _________ and get ready for class．

A．talk                     B．to talk                 C．talking                   D．to talking

27．--It isn't a football，is it?

-- _________ It is a basketball．

A．Yes，it is．         B．No，it isn't．          C．Yes，it isn't．         D．No，it is．

26．Dictionaries are important to us students．When we meet a new word，we can _________ in them．

A．look it up            B．look up it              C．look for it              D．look them up

25．I like noodles．I think they are one of _________ foods in China．

A．popular                                                  B．more popular

C．most popular                                           D．the most popular

24．--Hello．May I speak to Jane?

-- _________

A．I am Jane．                                            B．Yes，you may．

C．Hold the line，please．                              D．Who are you?

23．After a long hiking，the boy was _________ tired to walk．

A．too                      B．to                        C．so                          D．very

22．--May I _________ your sport shoes?

--Sure，but you couldn't _________ them to others．

A．lend；lend           B．borrow；borrow     C．lend；borrow         D．borrow；lend

21．_________ funny story! It makes us laugh again and again．

A．What an                B．What a                  C．How                      D．What

20．You _________ smoke when you see the sign ．

A．must                   B．should                 C．mustn't                   D．needn't

19．I am quite busy．I don't know _________ I will have time or not tonight．

A．if                        B．weather               C．whether               D．when