The wealth of the richest province is about 12 times of the poorest.
A. one B. than C. as D. that
—What made you so delighted at Christmas？
— .
A. As there was an unusual celebration
B. My uncle’s coming back from abroad
C.I received many more presents than others
D. Because my parents promised me a new car
Life is like a long race we compete with others to go beyond ourselves.
A. why B. what C. that D. where
About 90 percent of the equipment presented by the administration， as well as the facilities of our own， made good use of in the teaching.
A. have B. has C. have been D. has been
Never before in greater need of technical experts than it is today.
A. has Hunan been B. Hunan has been
C. was Hunan D. Hunan was
It is only people know the importance of science science can really serve the people.
A. that； when B. when； that C. then； that D. that； then
