—Whatifyouhave7days

問題詳情：

—What if you have 7 days_______?   —I'd like to go_______ a trip_______ Beijing.

A. of; for; to        B. off; on; for       C. off; on; to        D. of; for; for

【回答】

C

知識點：介詞和介詞短語

題型：選擇題