助動詞どちらを選ぶ？

You will [ must / have to ] get up early tomorrow morning.

• must

• have to

You [ would / should ] come home by six. あなたは6時までに家に戻るべきです。

• would

• should

They [ must / should ] finish their homework before going out to play.　外で遊ぶ前に宿題を終わらせなければなりません。

• must

• should

"[ Can / Will ] I use this computer?" "Sure!"

• Can

• Will

You look quite well; you [ cannot / must not ] be sick.

• cannot

• must not

[ Shall / May ] I come in?

• Shall

• May

My sister is 3 years old. She [ can't / mustn't ] answer such a difficult question.

• can't

• mustn't

My brother is 16 years old. He [ can't / must ] answer such an easy question.

• can't

• must

My sister's baby [ will be able to / will can ] walk soon.

• will be able to

• will can

You [ have not to/ don't have to ] wake up early tomorrow. It' s a holiday!

• have not to

• don't have to