Not surprising that the process of choosing names __________widely from culture to culture.
A. varies
B. varying
C. differing
D. various
查看答案
The case of two missing boys in this area is being_____.
A. looked up
B. looked into
C. looked for
D. looked after
It____ 5 years since we knew each other.
A. is
B. had been
C. will be
D. was
Don't come here tomorrow afternoon because we _____a meeting at three o’clock then.
A. will have
B. will be having
C. are having
D. will have had
The student was about to give up answering the question ___suddenly he found the answer.
A. unless
B. until
C. when
D. while
微信支付 
支付宝支付