Before our study we did not have data that could tell us __ those changes were small or large .
| A．that | B．how | C．when | D．whether |
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 |