Complete the sentences using must or can't and the correct tense of the infinitive. 1 I'm certain Adam sent you an email. Adam
2 I don't think Tina left the door unlocked.
Tina
3 I'm sure Keith paid the bill.
Keith
4 I don't think they are staying with Paul. He's away.
They ...
5 I don't think Jeff forgot their wedding anniversary.
Jeff
6 I'm certain Julie is waiting for us at the reception.
Julie
7. I am sure Mary went to India for her gap year.
Mary
8 I'm sure Steven enjoyed living with his host family in Mexico.
Steven
9 I'm sure she's had cosmetic surgery. She
10 I'm certain they grow their own food. They
11 I don't think Jenny has won a scholarship.
Jenny