The moment John will never forget is ______ Mr. Smith gave him a lot of valuable advice on how to improve his writing.
A.that; that | B.that; when |
C.when; that | D.when; when |
Children who are taller have an obvious __________ (优势)when playing football.
We expect to see a dramatic __________ (增加)in the number of visitors in October.
Fascinated by the night sky, he __________ (购买)his telescope in the 1880s.
The athlete came to the point of considering an early r __________.
Many people have doubts whether the government properly keeps __________ (踪迹)of senior citizens' whereabouts.