Tom is the only one of the students who________to Shanghai.

 A．have gone                                    B．have been

C．has been                                        D．had gone

On the bus I saw a student________I thought was your brother.

A．who                                              B．whom

C．he                                                 D．him

Helen treats her youngest daughter better than other children，________，of course，makes the others unhappy.

A．who                                              B．which

C．she                                               D．that

The kind of humor I like is the thing________makes me laugh for five seconds and think for ten minutes.

A．that                                               B．/

C．what                                             D．it

We should learn from those________are always ready to help others.

A．who                                              B．whom

C．they                                              D．that

Is this the dictionary________you bought yesterday?

A．the one                                          B．which

C．what                                             D．whose

The manager had little free time________he could spend studying then.

A．when                                            B．in which

C．at which                                        D．which

Sorry，this is the only dictionary________I can find here.So you have no choice.

A．that                                               B．which

C．in which                                        D．where

The cat killed the rat________ate the meat________lay in the house________Jack built.

A．who；that；where                         B．that；/；that

C．/；that；where                              D．that；that；/

He lives in a room________window faces the south.

A．which　　　　　　　　　　　　   B．that

C．whose                                           D．who’s