He (　　) taken his advice. 私は彼の忠告を聞くべきだったのに。

• must

• needn't

• can't have

• should have

Answer explanation

すべきだったのに（実際はしなかった） should have pp

We (　　) have hurried. 私たちは急ぐ必要はなかったのに。

• must

• needn't

• can't have

• should have

Answer explanation

する必要なかったのに（実際はした） needn't have pp

He (　　) had a good rest. 十分休憩をとったに違いない。

• must have

• might have

• can't have

• should have

Answer explanation

したに違いない must have pp

She (　　) have made such a mistake. 彼女がそんな間違いをしたはずがない。

• must

• might have

• can't have

• should have

Answer explanation

したはずがない can't/cannot have pp.

そんなこと　such a thing

そんな間違い such a mistake

I (　　) left the key at home. 私は家に鍵を置き忘れたかもしれない。

• must

• might have

• can't have

• should have

Answer explanation

したかもしれない

may/might have pp

______ you ___ a drink? いかがですか。

No ______. いいえ、結構です。

I _____ like two tickets. 欲しいのですが

I would ______ stay home ____ go out. 外出するよりも家にいたい。

_____ you ____ to join us? どうですか？

I would like __ make a reservation.