28、Nobody but doctors and those ________ by Dr Zhang ________to enter the patient’s room.

A．invited; is allowed                                       B．are invited; are allowed

C．being invited; is allowed                               D．being invited; are allowed

27、________ from him so far, she felt a little worried.

A．Having not heard                                        B．Not having heard

C．Not hearing                                                D．Not to hear

24、—Look ! sammy has         tense expression on her face.

—So she does. It seems that         news is true.

A．a；不填   B．the；不填 C．a；the     D．the；a

23、—I need to get downtown. Is there a bus that goes there?

—Take Bus No. 9 or 12. They        go downtown. Take         one comes first. 

A．all；whatever             B．all；whichever     C．both；whichever D．both；whatever

22、Some developing countries are trying to get every child into school. They are experiencing similar difficulties to         that China faces.

A．one                            B．that                    C．these                  D．those

21、Having practiced a lot,        

A．his English has been improved

B．he has made great improvement in English

C．English is easy for him now

D．his teacher praised him

20、Alice isn’t accustomed to the life in the city          the noise outside so loud.

A．because                     B．with                    C．as                       D．because of

19、Mothers are talkative. It’s perfectly         to get angry with your mother sometimes.

A．mad                          B．good                   C．ordinary              D．normal