When asked why he went there,he said he was sent there___for a space flight.
| A．training | B．being trained |
| C．to have trained | D．to be trained |
Often，even a common thing of the past can ________ the image of life in the ancient time.
| A．describe | B．present | C．express | D．impress |
According to an old story, Leif followed Biarni’s directions and sailed to _______ is believed to be the coast of present-day Canada.
| A．where | B．which | C．what | D．that |
While he was at college，he took part in political activities，and was thrown into prison．
| A．the；/ | B．/；the | C．／；／ | D．the；the |
Great changes have taken place in China since the People’s Republic of China
in 1949．
| A．was found | B．founded | C．was founded | D．found |
At night we can see stars in the universe．
| A．millions of | B．million of | C．millions | D．million |