Tom was absent from school this morning because sometimes he was a little weak and could

问题补充：

Tom was absent from school this morning, because sometimes he was a little weak and could ill .

A. take

B. set

C. catch

D. fall

答案：

A. take

B. set

C. catch

(答案→)D. fall

解析：考查动词。 A. 带走 B. 树立 C.抓住 D.变成，落下。句意：汤姆今天上午没来上学，因为有时他很虚弱，并且可能生病了。Fall ill 生病，故选D。