Mr. Oven has three children, one of whom is a child of six, ___ twins of twelve.
A. another B. other C. the others D. others
the fact that his first experiments had failed, Prof. Smith persisted in his research.
A. Although B. Regardless C. In spite of D. In views of
So involved with computer games that teachers at summer computer camps often have to force them to break for sports and music.
A. became the children B. become the children
C. had the children become D. do the children become
Living alone in the central desert in Australia has its problems, obtaining water is not the least.
A. of which B. for what C. as D. whose
Tom appreciated the good chance to study in Oxford since he graduated from No. 4 High School in Shenyang.
A. having been given B. having given
C. having been giving D. to have given
Let’s make contributions to world of the 21st century, world of success and understanding each other.
A. the;/ B./;a C. a; the D. the; a
