Complete the sentences using must, can't, may or may not:
1. I'm certain he doesn't know the secret.
=> He _____________________________________________.
2. I'm certain Susan has paid the phone bill.
=> Susan __________________________________________.
3. It's possible that vitamin tablets are not the best thing for your health.
=> Vitamin tablets ___________________________________.
4. I'm sure they don't live here.
=> They ___________________________________________.
5. Perhaps he doesn't know much about cars.
=> He _____________________________________________.
6. I'm certain he didn't call me.
=> He ____________________________________________.
7. Maybe I will phone her later.
=> I ______________________________________________.
8. Perhaps wearing glasses will make your eyesight worse.
=> Wearing glasses _________________________________.
1. He can't know the secret.
2. Susan must have paid the phone bill.
3. Vitamin tablets may not be the best thing for your health.
4. They can't live here.
5. He may not know much about cars.
6. He can't have called me.
7. I may phone her later.
8. Wearing glasses may make your eyesight worse.
Complete the sentences using must, can't, may or may not:
1. I'm certain he doesn't know the secret.
=> He _____can't know the secret________.
2. I'm certain Susan has paid the phone bill.
=> Susan ___must have paid the phone bill______.
3. It's possible that vitamin tablets are not the best thing for your health.
=> Vitamin tablets _____may not be the best thing for your health_____.
4. I'm sure they don't live here.
=> They ________can't live here________.
5. Perhaps he doesn't know much about cars.
=> He ________may not know much about cars__________.
6. I'm certain he didn't call me.
=> He _______can't have called me__________.
7. Maybe I will phone her later.
=> I ______may phone her later___________.
8. Perhaps wearing glasses will make your eyesight worse.
=> Wearing glasses ____may make your eyesight worse______.
Complete the sentences using must, can't, may or may not:
1. I'm certain he doesn't know the secret.
=> He ____can't know the secrect_________________________________________.
2. I'm certain Susan has paid the phone bill.
=> Susan __must have paid the phone bill________________________________________.
3. It's possible that vitamin tablets are not the best thing for your health.
=> Vitamin tablets _____may not be the best thing for your health______________________________.
4. I'm sure they don't live here.
=> They ______can't live here_____________________________________.
5. Perhaps he doesn't know much about cars.
=> He _may not know much about cars____________________________________________.
6. I'm certain he didn't call me.
=> He _____can't have called me_______________________________________.
7. Maybe I will phone her later.
=> I _____may phone her later_________________________________________.
8. Perhaps wearing glasses will make your eyesight worse.
=> Wearing glasses ____may make your eyesight worse_____________________________.
