Professor Smith has written some short stories , but he is _____known for his plays .
#20615
A
better
B
more
C
best
D
most
推荐题目
It was raining outside,   ,I couldn’t find a taxi.
#20322
A
to make things better
B
to make things worse
C
still worse
D
still better
The girl looked at me with a ________expression at the ______ computer program.
#18726
A
puzzled , puzzling
B
puzzling, puzzled
C
puzzling , puzzling.
D
puzzled , puzzled
Once harm is _______ to the eco-system, all species will ________, including man himself. 
#19350
A
made; be in danger
B
done; be dangerous
C
caused; be endangered
D
done; be in danger