Einstein liked Bose’s paper so much that he ___ his own work and translated it into German.
A. gave off B. turned down C. took over D. set aside
The sentence wants ____ once more.
A. explaining B. to explain C. being explained D. explained
--Why are you so anxious?
--It isn’t your problem ____.
A. on purpose B. in all C. on time D. after all
The two sportsmen congratulated each other ____ winning the match by shaking hands.
A. with B. on C. in D. to
He began to take political science _________ only when he left school.
A. strictly B. truly C. carefully D. seriously
Yesterday I went to see him, _________ that he had gone abroad two days before.
A. only to learn B. to learn only C. only learned D. only learning
