A. education
B. are received
C. crucial
D. as a whole
A. major goals
B. is
C. to achieve
D. and
A. It is
B. that
C. as well
D. sciences
A. The purpose of
B. to give
C. to prepare
D. and
A. Most parents
B. an education system
C. which
D. widest
A. must not leave
B. must not be leaving
C. must not be left
D. must not have left
A. is going to be performed
B. has been performed
C. will be performing
D. will have performed
A. frozen
B. were frozen
C. were froze
D. are frozen
A. were grown by John yesterday in the backyard
B. were grown in the backyard by John yesterday
C. were grown in the backyard yesterday by John
D. in the backyard were grown yesterday by John
A. invented
B. were invented
C. is invented
D. was invented
A. Have the letters been typed
B. Have been the letters typed
C. Have the letters typed
D. Had the letters typed
A. to be generally known
B. is generally known
C. generally known
D. is generally knowing
A. are destroying
B. be distroyed
C. were destroyed
D. destroyed
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