From the Passage, we learn that the total population of Africa is approximately （）
A. seven hundred million
B. one hundred and twenty-five million
C. eight or eight point five thousand million
D. one hundred million
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As a small boy, he was slow ______ learning to read and write.
A. on
B. with
C. about
D. in
John had been working hard and ______.
A. so had his brother
B. so his brother had
C. so was his brother
D. so his brother did
The house ______ will be our new laboratory.
A. building
B. being built
C. to build
D. having built
For it to end in a positive manner a negotiation must be a win-win situation for both parties.（）
A. 为了以积极的方式结束谈判，结果应该是双赢的局面。
B. 作为对谈判的肯定，其结果必须是双赢的局面。
C. 谈判积极的结果应该是双赢的局面。
D. 因为双方肯定的态度，谈判的结果没有输赢。
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