单项选择题
A．too much; would catch B．a little too; had caught C．much too; would have caught D．too much; would have caught
We will not attack () we are attacked; if attacked, we ...
单项选择题We will not attack () we are attacked; if attacked, we will certainly counter-attack.
A．if B．when C．unless D．even if
"Do you hear someone knocking at the door" "Yes, I did...
单项选择题"Do you hear someone knocking at the door" "Yes, I did. I heard him () three times."
A．knocking B．knocked C．being knocking D．knock
The two thieves fled the town separately, () a bag. A．e...
单项选择题The two thieves fled the town separately, () a bag.
A．each carrying B．whose that watch is C．whose watch is that D．whose watch is
