________ the important documents were needed_______.
A. Where; finding B. What; found
C. When; to find D. When; to be found
We are waiting until the weather ________ a little.
A. takes up B. picks up C. turns up D. makes up
--He must have received a good education in his childhood, ________ he?
--________, he is polite and well-behaved and acts like a gentleman.
A. didn’t; Yes B. has; Yes C. has; No D. didn’t; No
An increasing number of countries have been ________ China as a threatening power recently.
A. looking up B. looking at C. looking on D. looking for
All the citizens here strongly insist those found ________ “harmful” advertisement in the streets ________ punished strictly.
A. putting up; will B. to put up; should be
C. being put up D. putting up; be
Scientists are convinced ________ the positive effect of laughter ________ physical and mental health.
A. of; at B. on; at C. by; in D. of; on
