The manager listened to the customers’ complaints attentively with great patience, ________ to miss any point.
A. not trying B. trying not C. to try not D. not to try
Much as he ________ he has a good command of English, he sometimes feels it hard to find an appropriate version for some Chinese idioms.
A. announces B. declares C. claims D. confirms
--You should have thanked her before you left.
--I meant ________, but when I was leaving I couldn’t find her anywhere.
A. to do B. to C. doing D. doing so
Many people are ________ as to what to do when there is a fire.
A. at a loss B. at risk C. at ease D. at a distance
Girls used to take fewer advanced math courses than boys but now they are taking just _______.
A. as much B. so much C. as many D. so many
If we had taken such effective measures much earlier, the river ________ so seriously now.
A. is not polluted B. would not be polluted
C. had not been polluted D. would not have been polluted
