33.The nurse treated the naughty boy very kindly,but her patience ___________ at last.
A.went down B.used up
C.got away D.gave out
32.He suggested the problem worth paying attention ___________ at the meeting.
A.to be discussed B.to being discussed
C.to discuss D.to discussing
31.With a new school ___________ here next year,more students will be able to receive good education.
A.built B.building
C.to built D.to be built
30.___________,I'll drop in on Mr. Black in Houston.
A.Time permitting B.Time permits
C.With time permitted D.When time permitting
29.I had wanted to go and help him,but I ___________ to do so because of the heavy rain.
A.have failed B.failed
C.had failed D.didn't fail
28.___________ delicious,the dish is well received by the customers.
A.Tasted B.Being tasted
C.Tasting D.Having tasted
27.We'd better fill up the tank ahead of time,because we ___________ run out of gas on the way.
A.must B.might
C.would D.should
26.-I think it's going to be a big problem.
-Yes,it could be.I wonder ___________ we can do about it.
A.what B.that
C.if D.how
25.It was 2002 ___________ you came to work in our company.
A.who B.that
C.when D.which
24.I'm thankful to him for the advice,___________ I owe all my success.
A.which B.that
C.to which D.by which