---Helooksreallyworried.He

問題詳情：

 --- He looks really worried. He ______ be having some problems.

  --- I guess so. He’s weak in math and physics.

   A. may                    B. can                         C. must                       D. will 

【回答】

C語境：談論某人考前焦慮狀態的原因；關鍵詞語：上下文語氣。考點：情態動詞，推測。

知識點：虛擬語氣與情態動詞

題型：選擇題