30.________some English-learning websites if you are free, and you will learn a lot about how to study English.
| A．Having visited | B．To visit | C．Visiting | D．Visit |
相关试题
Last month, part of Southeast Asia was struck by floods, from _____ effects the people are still suffering．
| A．that | B．whose | C．those | D．what |
________ many times, he finally understood it．
| A．Told | B．Telling | C．Having told | D．Having been told |
He told us whether _________ a picnic was still under discussion
| A．to have | B．having | C．have | D．had |
David threatened_______ his neighbour to the police if the damages were not paid．
| A．to be reported | B．reporting |
C．to report | D．having reported |
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