The fleet made several expeditions the exploration was stopped.A.whenB.beforeC.w
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The fleet made several expeditions _______ the exploration was stopped.
| A.when | B.before | C.while | D.since |
试题答案
B
解析

The fleet made several expeditions _______ the exploration was stopped.
| A.when | B.before | C.while | D.since |
B
解析