A.studied English
B.had been studying English
C.studies English
D.will have been studying English
（ ）44.The school authorities and teachers _____over the advantages and disadvantages of the educational system.
A.were always argued
B.were always arguing
C.had always argued
D.had always been argued
（ ）45.When I saw her smiling face， I knew she_____the first prize of the speech contest.
A.has
B.has had
C.had had
D.was having
（ ）46.The united States______fifty states.
A.consisted of
B.is consisted of
C.consistes of
D.consists
（ ）47.The Chinese food_____delicious.
A.are tasted
B.taste
C.is tasted
D.tastes
（ ）48.Your hair needs_____. You'd better have it_____tomorrow.
A.cutting； done
B.cutting；to be done
C.being cut；done
D.to be cut；to be done
（ ）49._______，wood will soon burst into a flame.
A.Heating
B.when heating
C.Being heated
D.When heated
（ ）50."How do you like your new position？" "I_____with it."
A.don't satisfy
B.am not satisfied
C.can't satisfy
D.haven't satisfy
（ ）51.there are more than fifty proposals______at the conference.
A.discussed
B.to be discussed
C.discussing
D.having discussed
（ ）52.By the end of last year the railway_______.
A.was being completed
B.would be completed
C.had completed
D.had finally been completed
（ ）53.By the time the author comes back from abroad， all the books_______.
A.will have punished
B.will have been punished
C.will be punished
D.have been punished
（ ）54.I wondered____to come for the party.
A.should he been asked
B.he asked
C.if he should have been asked
D.if he should have asked
（ ）55.Some forms of physical education_____by schools across the nation.
A.have been practised
B.practised
C.which practised
D.have practised
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