A.to let rest the matter | B.the matter to be let resting | C.letting the matter to rest | D.to let the matter rest |
A.they had difficulty being answered | B.answering them was with difficulty | C.they were difficult to answer | D.to answer them was to be difficult |
A.not to tell | B.not telling | C.telling not | D.not tell |
A.leaving | B.being left | C.having left | D.left |
A.Improving | B.Improve | C.To improve | D.To be improved |
A.belonged to | B.belonging to | C.which is belonged to | D.belongs to |
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