International situation is currently undergoing great changes ________ UNESCO plays an irreplaceable role in promoting international cooperation.
| A．which | B．what | C．where | D．that |
______ 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 |