Tea _______ by accident about 5000 years ago.
| A． |
invented |
B． |
was invented |
C． |
is invented |
I can’t imagine ________ with him in the same room.
| A．to live | B．living |
| C．live | D．lived |
I can use my ________ to take high-quality images.
| A．radio | B．watch |
| C．television | D．camera |
Life on Mars will be better than life on Earth __________many ways.
| A．on | B．in |
| C．at | D．for |
－_________I have a try on this pair of boot ? －Yes，you _________．
| A．Can；could | B．May；may |
| C．Can；might | D．May；could |
This is a big class，and _________of the students _________boys．
| A．two-third；are | B．second-there; is |
| C．two-thirds；are | D．two-three：is |