It may be necessary to stop______in the learning process and go back to the difficult points in the lessons.
A. at intervals B. at random
C. at ease D. at length
I have______all my papers but I still can't find my notes,
A. looked through B. looked for
C. looked after D. looked out
So far no one has______convincing evidence of why dinosaurs died out,and it remains a mystery.
A. come about B. come into
C. come up with D. come out
A monument______our heroes in the Anti-Japanese War was built up last year.
A. in favor of B. in honor of
C. in possession of D. in terms of
I can't______such a good job when have been out of work for months.
A. turn off B. turn down
C. turn in D. turn to
Whenever I______an interesting article online,I will share it with friends on WeChat.
A. figure out B. put forward
C. get across D. come across
