________ seems strange to us is ________ the troublesome boy is getting along well with all his teachers.
| A．It; that | B．What; how | C．It; how | D．What; that |
Mark was a student at this university from 1999 to 2003, __________ he studied very hard and was made
Chairman of the Students’ Union．
| A．during which time | B．for which time |
| C．during whose time | D．by that time |
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 |