A.at a time | B.at one time | C.at times | D.at the same time |
A.in; in the forties | B.in; in his forties |
C.in the; in the forties | D.in; in his forty |
A.in; on some advice | B.for; for some advices |
C.on; some advice | D.with; for some advice |
A.with care | B.on purpose | C.for fun | D.with aim |
A.in search of | B.in advance of | C.in terms of | D.in case of |
A.in a row | B.in total | C.in all | D.in order |
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