.Shall we request the chairman __________ our suggestion again?
A.to consider
B.considering
C.consider
D.considered
2.Some say yes and others say no; I don't know __________ to follow.
A.whether
B.what
C.whom
D.how
3.An explosion is a sudden increase in amount __________.
A.rapid burning causes it
B.to be caused by rapid burning
C.causing its burning to be rapid
D.caused by rapid burning
4.We forgave her anger because we knew that her father's illness had put her under great _________.
A.shelter
B.crisis
C.stress
D.nervousness
5.He never _________ to read the news but turned at once to the crossword puzzle on the last page.
A.worried
B.noticed
C.pained
D.bothered
6.Since we can't hear you at the back of the hall,you'll have to __________ your voice.
A.improve
B.increase
C.raise
D.open
7.The price they offered for my old car was so low that I _________ it down.
A.brought
B.turned
C.called
D.refused
8.The noise of the traffic _________ Paul from his work.
A.prevented
B.distracted
C.angered
D.upset
9.People appreciate _____________ with him because he has a good sense of humor.
A.working
B.to have worked
C.to work
D.having worked
10.Inquiries _____________ the condition of the patients may be made personally or by telephone.
A.revealing
B.concerning
C.affecting
D.following