Atthebeginningofthenewschoolyear,Ihadtofaceaboutthirtyu...

問題詳情：

At the beginning of the new school year, I had to face about thirty unfamiliar students, most of them freshmen       to get used to the new environment.

  A. trying    B. tried    C. to try     D. having tried

【回答】

A

知識點：非謂語動詞

題型：選擇題