---Ihearyouwon’tgoonaschooltripwithus.  ---Yes.mymothe...

問題詳情：

 ---I hear you won’t go on a school trip with us. 

 ---Yes. my mother has to _______, she is seriously ill.

A. be taking care of     B. take care of    C. be taken care  D. be taken care of

【回答】

D

知識點：動詞和動詞短語

題型：選擇題