A.cost | B.spend | C.charge | D.take |
A.let down | B.calm down | C.break down | D.set down |
A.difficulties in | B.difficulty with | C.difficulty | D.difficulty to |
A.explain that word | B.repeat that word | C.explain us that word | D.explain that word for us |
A.In two days | B.Every few days | C.Each third day | D.Every a few days |
A.spend; in | B.cost; at | C.pays; to | D.spends; on |
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