[ Grammar ]
She closed the door to her office _______ nobody could hear her conversation
A. so as to
B. so that

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Grammar › ViewRice
A. Countable
B. Uncountable
Complex Sentences with Adverb Clauses › View
He went searching for his children ________ he heard the warning of the tornado.
A. during
B. while
C. as soon as
D. when