21、       the problem       me and I’ll see what I can do with it.

A．When left; for                                            B．Leaving; to         

C．If you leave; with                                       D．Leave; with

20、She’s moved to another job, it’s a great         to our firm.

A．loss          B．loose        C．losing       D．lost

19、Those are model workers,         some are young fellows.

A．of that      B．of whom          C．of who     D．of whose

18、No one can be sure        in a million years.

A．what man will look like                                B．what will man look like

C．man will look like it                                     D．what look will man like

17、He lived in London for 3 months, during         time he learned some English.

A．this   B．which       C．that   D．same

16、         has already been pointed out, grammar is not a set of dead rules.

A．As            B．It             C．That         D．Which

15、--- Gould you do me a favor?

--- It depends on        it is.

A．which                                                        B．whichever

C．what                                                         D．Whatever

14、--- What made Bill so angry?

---        . His girl friend promised to come at 8:30, but she hasn’t come yet.

A．Having kept waiting                             B．Being kept waiting

C．To be keeping wait                               D．Being kept waited

13、You must take everything into         when you want to do a difficult task.

A．consider   B．considering      C．consideration    D．considered