They lost their way in the forest and _____ made matters worse was that night began to fall.
| A．that | B．this | C．what | D．which |
______ many times, he finally understood it.
| A．Told | B．Telling | C．Having told | D．Having been told |
Going on a trip into ______ space must be quite ______ exciting experience.
| A．/ ; the | B．/ ; an | C．the; an | D．the; a |
_______ made the school proud was______ more than 90% of the students had
been admitted to key universities.
| A．What; because | B．What; that | C．That; what | D．That; because |
______ is a fact that English is being accepted as an international language.
| A．It | B．This | C．That | D．There |
I talked for a long time, and in the end I_____ make her believe me.
| A．should | B．can | C．was able to | D．must |