How much does it _____ to take the online training course?(201912)
A. cost
B. give
C. pay
D. spend
If you need more information, please contact us _____ telephone or email.(201912)
A. in
B. by
C. on
D. for
Mr. Smith used to smoke _____ but he has given it up recently.(201912)
A. immediately
B. roughly
C. heavily
D. completely
He was speaking so fast _____ we could hardly follow him.(201912)
A. what
B. as
C. but
D. that