Question

--- Boys and girls, your homework must ______tomorrow morning. Remember?
--- Yes, Miss Green.
A. finish              B. be handed in           C. will do

Answer 1

B

試題分析：finish完成，結束；be handed in提交；will do將要做。句意：孩子們，你們的作業明天早晨必須交上來，記住了嗎？——是的，格林老師。結合語境可知本句主語是動作對象，故用被動語態，選B。