The gravity on Mars is only about ________ of that on Earth.
A. 1/2 B. 2/3 C. 1/8 D. 3/8
It is hard to imagine what life __________ in 100 years.
A. will like B. will be like C. likes D. might like
My friend John insisted that he had seen ______ alien the day before.
A. a B. an C. some D. any
Our teacher asked us to write a _________ letter in English this morning.
|
A．ninety-word |
B．ninety-words |
|
C．ninety word |
D．ninety words |
Thanks to those brave firemen, the big fire was _________ soon.
|
A．put up |
B．put away |
C．put out |
D．put on |
A report says the temperature on the earth now is much higher than _______ in the past.
|
A．this |
B．that |
C．these |
D．those |
