It was cold.The wind ___ hard and no one could be seen around.
| A．blew | B．was blowing | C．had blown | D．would blow |
He made another wonderful discovery, ______ of great importance to science.
| A．which I think is | B．which I think it is |
| C．which I think | D．I think which is |
Was it because of the heavy snowstorm in Europe _______ the flight had to be put off ?
| A．which | B．so | C．why | D．that |
Not until the taxi disappeared in the distanceher handbag was gone.
| A．Tina had found | B．had Tina found | C．did Tina find | D．Tina found |
It is one thing to enjoy listening to good music, but it isanother to play it well yourself.
| A．quite | B．very | C．rather | D．much |
Tsinghua University, in 1911, is home to a great number of outstanding figures.
| A．found | B．founding | C．founded | D．to be founded |