【5】
(1)The students at this school must not
speak Japanese in class.
この学校の生徒は授業中に日本語を話してはいけない。
(2)Must I read this book in a week?
私はこの本を1週間以内に読まなければいけませんか?
(3)Must he do his homework now?
彼は今宿題をしなければなりませんか?
【6】
(1)He should see her.
(2)He should not (shouldn't) see her.
(3)Should he see her?