The teacher insisted that I______ a mistake and insisted that I______ the physics problem again.
| A．make; did | B．made; did | C．make; do | D．made; do |
相关试题
In science fiction we read of flying saucers travel through _____ space, so people want to have ______ better knowledge of the universe. 
| A．the; a | B．/; / | C．the; / | D．/; a |
In order to find _______ better job, he decided to study _________ second foreign language.
| A．the; a | B．a; a | C．the; the | D．a; the |
The biggest whale is ___ blue whale, which grows to be about 29 meters long—the height of ___ 9-story building.
| A．the; the | B．a; a | C．a; the | D．the; a |
We can never expect____bluer sky unless we create____less polluted world.
| A．a; a | B．a; the |
| C．the; a | D．the; the |
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