Everybody showed great respect to the old doctor, who devoted everything he had to _____ the poor conditions of the local hospital.
A. improving B. improve C. improved D. being improved
A
It was only when I read this story for a second time ________to appreciate its beauty.
A. that did I begin B. had I begun
C. then I began D. that I began
D
Maybe all Americans realize that______ they expect to be next president will face lots of problems.
A.no matter who B.whoever
C.whomever D.no matter whom
B
There is no doubt,in my opinion, ________matters is not the speed,but the quality of the product.
A. that B. which C. what that D. that what
D
Istill remember the day when I said goodbye to my family, ________on the plane and started my journey to London.
A. to step B. stepping C. stepped D. having stepped
C
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