Ⅱ.单项填空（共20小题；每小题1分，满分20分）
21. Nowadays _____certain limit should be set on ____ use of cars to reduce air pollution.
A. 不填；the B.a ;不填 C. the ;the D. a; the
22. Mr.Smith , in ____ house some shawls were confiscated , was arrested by the police.
A. who B. whom C. which D. whose
23.—Could you please lend me some money?
—I’m in need of money myself, but ____, I’ll lend you some.
A. somehow B. somewhat C. anyway D. anytime
24. Some people try to knock me down, only ____ me more determined to do things better.
A. having made B. making C. make D. to make
25. ____ sleep prevented me from thinking clearly enough to produce satisfying answers.
A. Lack of B. Lacking of C. Being lack of D. Lacked
26. Creating world peace is rather a difficult goal, ____ calls for efforts of many generations.
A. one that B. one C. that D. it
