Post-test Modal Auxiliary Verb

1. Look at this street, it is very muddy, it ____ have rained heavily last night.

2. Although research scientist had hoped that the new drug interferon ____ to be a cure for cancer, its applications now appear to be more limited.

3. The man standing over there asked me whether he ____ the flowers from my garden.

5. You ___ throw litter from your vehicle because it can pose a risk to the environment.

6. ___ you please check my paper for grammar errors?

7. Vira has very smooth skin, she ____ apply olive oil to her face before going to bed.

8. The principal said that candidates without hall tickets ___ not permitted inside the examination hall.

9. I ___ speak Arabic fluently when I was a child and I lived in Morocco. But after I moved back to Canada, I had very little exposure to the language and forgot almost everything I knew as a child. Now, I ___ just say a few things in the language.

10. This is a dangerous tour. Children ___ be accompanied by an adult.