Question

Fill in the blanks using MUST, CAN’T, MAY, MIGHT, COULD and PAST FORMS of
them:

1. Sally looks sad and worried. She _____. (have) a problem
with something.
2. Bob _____ (be) at school because I haven’t seen him today.
3. Mr. Treves hasn’t come to work yet. He has never been late for work. He _____ (miss) the bus.
4. Timmy is a very good boy. He isn’t naughty, so he _____ (break) that window.
5. Someone else _____ (break) it.
6. I’m sure that I dropped my key in the car. It _____ (be) there at the moment.
7. The street is wet this morning. I’m not sure but it _____ (rain) last night.
8. A: I talked to your science teacher at school yesterday.
B: You _____ (talk) to her because she wasn’t at school yesterday.
9. A: The man was being taken to hospital. He _____ (have) an accident.
B: Yes, I’m sure he had an accident.

Answer 1

Respuesta:  correctas

1. Sally looks sad and worried. She ___ MUST HAVE HAD__. (have) a problem with something.
2. Bob __ MUST BE ___ (be) at school because I haven’t seen him today.
3. Mr. Treves hasn’t come to work yet. He has never been late for work. He __MIGHT HAVE MISSED___ (miss) the bus.
4. Timmy is a very good boy. He isn’t naughty, so he __CAN'T HAVE BROKEN___ (break) that window.
5. Someone else ___MUST HAVE BROKEN__ (break) it.
6. I’m sure that I dropped my key in the car. It __MUST HAVE BROKEN__ (be) there at the moment.
7. The street is wet this morning. I’m not sure but it __MUST HAVE RAINED__ (rain) last night.
8. A: I talked to your science teacher at school yesterday.                         B: You __CAN'T HAVE TALKED__ (talk) to her because she wasn’t at school yesterday.
9. A: The man was being taken to hospital. He __MUST HAVE HAD__ (have) an accident.          B: Yes, I’m sure he had an accident.