Never such a marvelous place as the Great Wall before I got there.
A. did I see
B. I had seen
C. I saw
D. had I seen
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, Sam would have been able to pass the exam.
A. If he studies more
B. If he were studying to a greater degree
C. Studying more
D. Had he studies more
had he gone to sleep than the telephone rang once more.
As soon as
B. No sooner
C. Hardly
D. Scarcely
They thought it question to ask.
A. too difficult
B. a too difficult
C. too a difficult
D. too difficult a
Only by diligence and honesty .
A. can one succeed in life
B. one can succeed in life
C. one will be succeeded in life
D. can one be succeeded in life