Amazing it is, an astronaut’s superior position is filled with potential danger.
A.when | B.if | C.unless | D.as |
-----I wonder if you could go with me to the supermarket.
------- Don’t disturb me. I _____________my experiment report all the morning and haven’t finished yet.
A.write | B.was writing | C.have written | D.have been writting |
Michael put up a picture of Yao Ming beside the bed to keep himself ________ of his own dreams.
A.reminding | B.to remind | C.reminded | D.remind |
-----Do you have a minute ? I’ve got something to tell you.
-----OK, ___________ you make it short.
A.now that | B.if only | C.so long as | D.every time |
The Internet connection for the entire area _________ when there was a sudden power cut yesterday.
A.lost | B.was lost | C.had lost | D.had been lost |
American Indians _________ about five percent of the U.S. Population.
A.fill up | B.bring up | C.make up | D.set up |