1.A few animals aometimes fool their enemies ___ to be dead.
A.appear
B.to appear
C.by appearing
D.to be appearing
2.Had he worked harder, he ___ the exams.
A.must have got through
B.would have got through
C.would get through
D.could get through
3.The pressure ___ causes Americans to be energetic, but it also puts them under a constant emotional strain.
A.to compete
B.competing
C.to be competed
D.having competed
4.Your hair wants ___. You had better have it done tomorrow.
A.cut
B.to cut
C.cutting
D.being cut
5.___, a man who expresses himself effectively is sure to succeed more rapidly than a man whose command oflanguage is poor.
A.Other things being equal
B.Were other things equal
C.To be equal to other things
D.Other things to be equal