At last，we found ourselves in a pleasant park ________trees providing shade(荫凉)and sat down to eat our picnic lunch．
A．for B．from C．of D. with
.Manufacturers should have professional productivity and technical knowledge to ______ the quality of the products.
A. predict B. promise C. guarantee D. determine
.It was in the 1990s _______ we were working together ____ we made friends with each other.
A. that; when B. when; that C. that; that D. when; when
—Tom, help me buy two tickets for this weekend’s concert online.
—Sorry, there is no ticket _______ online now.
A. acceptable B. convenient C. accessible D. available
Anti-Japanese War _______ in 1937 and it _______ eight years
A. was broken out; was lasted B. broke out; lasted
C. happened; was continued D. was happened; continued
---Do you know what WWF______ ?
----Yes. That’s World Wide Fund for Nature.
A. stand for B. look like C. stand D. like
