A.At first | B.At last | C.As a result | D.As usual |
A.Because | B.Since | C.Although | D.But |
A.while | B.since | C.when | D.as |
A.How often | B.How soon | C.How many times | D.How long |
A.It is | B.It will be | C.There was | D.There is going to be |
A.until | B.both | C.between | D.for |
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