Asaseniorthreestudent,youcan’tcomplainofbeingunluckyin...

問題詳情：

 As a senior three student, you can’t complain of being unlucky in your study _____ you don’t make an effort to explore all your potentials.

A. while                        B. when                       C. though                    D. whenever

【回答】

B

知識點：連詞

題型：選擇題