33. We were about to climb up to the top of the mountain ________ it began to rain heavily.
| A．as | B．while | C．when | D．Since |
—Susan has done well in the competition.
—______. She always does well in such activities.
| A．So has she | B．So she has | C．So does she | D．So she does |
______ makes the people who find value in hardships different is that they are able to combine what happened with the story of their own life.
| A．It | B．What | C．That | D．Which |
Our monitor, who by then ______ admission to Fudan University, decided to do some part-time jobs to gain more practical experience.
| A．gained | B．was gaining | C．has gained | D．had gained |
Taking physical exercise regularly is an effective way to avoid ______ with the flu.
| A．to infect | B．infecting | C．to be infected | D．being infected |
The entry point tissue in the very front of eye functions as the window ______ all light has to pass on its way.
| A．which | B．that | C．across which | D．through which |