A. do you realize B. then you realize C. that you realize D. have you realize
A. the structure it gives B. giving it the structure of C. structure that gives it D. its structures that gives
A. It is in 1921 that B. It was in 1921 that C. It is in 1921 when D. It were in 1921 that
A. so that B. that C. that is why D. so
A. It is what did he do B. It is what he do C. It is what he really has done D. It is only he did
A. will they B. they will C. have they D. they have
A. had B. will C. did D. doesn’t
A. that we don’t know B. what we don’t know C. unknown D. what unknown
A. which B. it C. that D. this
A. did he B. he did C. he does D. does he
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