You’d better exercise at least three times a week ______ you can keep fit.
A. so that B. only if
C. as though D. in case
---We’d better leave now.
---No hurry. The train ______ at 10 o’clock.
A. has left B. left
C. leaves D. would leave
The most exciting moment during the Spring Festival is _____ the family enjoy the big dinner together.
A. what B. why
C. which D. when
Scott was amazed by the Great Wall, _______ he described as the greatest attraction in Beijing.
A. where B. which
C. what D. why
Chinese people’s spending on overseas trips ______ year by year.
A. had risen B. rise
C. is rising D. rose
_______ astonishes us is that AlphaGo defeated the human champion.
A. Which B. When
C. That D. What
