Ever since the family moved to the suburbs last year, they ______ better health.
A. could have enjoyed
B. had enjoyed
C. have been enjoying
D. are enjoying
查看答案
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
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
微信支付 
支付宝支付