一Canyougotoseeafilmwithusthisevening? 一Sorry,Ican’t.I

問題詳情：

 一Can you go to see a film with us this evening?

 一 Sorry, I can’t. I_____ take care of my little brother at home because my mother is ill.

   A. can                      B. may                     C. would                  D. have to

【回答】

D

知識點：情態動詞

題型：選擇題