I know that _____ would over discourage him; he would never give up to be a director.

　　A. something        B. anything        C. everything    D. nothing

Julie was good at German, French and Russian, all of ____ she spoke fluently.

　　A who           B whom         C which          D that

One-third of the country ______ covered with trees and the majority of the citizens

　　black people.

　　A. is; are            B is; is           C are; are         D are; is

In 1492, Columbus_______ on one of the Bahama Islands, but he mistook it for an island of India.

　　A lands          B landed          C has landed        D had landed

No one ________ be compared with Yao Ming in playing basketball.

　　A can         B need           C must          D. might

Do you wake up every morning __________ energetic and ready day?

　　A feel   B to feel         C feeling      D fell

It is the most instructive lecture that ________since I came to this school.

　　A attended           B had attended       C am attending   D have attended

Before a problem can be solved, it must be obvious ______ the problem itself is.

　　A. what      B  that    C  which       D  why

Only after they had discussed the matter for several hours _______a decision.

　　A they reached        B did they reach     C they reach     D do they reach

Jack wasn't saying anything but the teacher smiled at him ____ he had done something very clever.

　　A as if       B in case       C while         D though