问题
选择题
Test takers _______ remain in their seats until all the exam papers have been collected.
A.can
B.could
C.shall
D.would
答案
C
shall作情态动词用于第二、三人称时,表示“许可、允诺、命令、强制”,shall在该句中表“强制”。
Test takers _______ remain in their seats until all the exam papers have been collected.
A.can
B.could
C.shall
D.would
C
shall作情态动词用于第二、三人称时,表示“许可、允诺、命令、强制”,shall在该句中表“强制”。