20．-Why do you look so upset?

　　　 -There are so many troublesome problems ____________．

　　　 A．remaining to settle 　　　　　　　　　　　　　　 B．remained settled

　　　 C．remaining to be settled　　　　　　　　　　　　 D．remained to be settled

19．The driver managed not to hit the child who ran in front of his car, but only ____ injuring himself．

　　　 A．in hopes of 　　　　 B．as a consequence of

　　　 C．at the mercy of 　 D．at the cost of

18．The new tax would force companies to ____ energy-saving measures,

　　　 A．adopt　　　　　　　　　 B．adjust　　　　　　　　　 C．adapt　　　　　　　　　 D．accept

17．Please ____ my suitcase while I go to buy my ticket．

　　　 A．have an eye for 　 B．keep an eye on　　 C．take care for　　　　 D．be careful on

16．____ knowledge, he went to the evening class．

　　　 A．Thirst for 　　　　　 B．Thirsty for　　　　　 C．Thirsting　　　　　　 D．Thirsty to getting

15．The comedian didn't seem to be able to get his jokes ____ to his audience-they all fell flat．

　　　 A．over 　　　　　　　　　 B．across　　　　　　　　 C．up 　　　　　　　　　　 D．back

14．Everything ______into consideration, we decided not to buy the expensive computer．

　　　 A．taken　　　　　　　　　 B．taking　　　　　　　　 C．to be taken 　　　　 D．to be taking

13．Cheer up, Maria! You can also enjoy ____ you have been dreaming of, if you don’t lose heart．

　　　 A．as a comfortable life as　　　　　　　　　　　　 B．as comfortable a life as

　　　 C．as a life comfortable as　　　　　　　　　　　　 D．comfortable as a life as