单选题
We are waiting ______ your reply ______ our letter.
题目答案
B
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We are waiting ______ your reply ______ our letter.
This _____ factor means that there is often a connection in appearance and temperament between parents and children.
Imports will be allowed in proportion _______ exports.
So far scientists have only acquired ________ understanding of the physical processes that cause earthquakes.
—You were brave enough to raise objections at the meeting.
— Well, now I regret ________ that.
The Roman goddess Venus is identified _______ the Greek goddess Aphrodite.