1. Hello. (Could/ Can) I speak to Mrs Johnson, please?
2. We (could/ were allowed to) go home early yesterday because our teacher was ill.
3. The head teacher said we (could/ were allowed to) go home.
4. Do you think I (should/ could) be worried about these spots on my forehead?
5. You (ought to/ should) enter that talent contest!
6. You (couldn't/ shouldn't) talk to people like that! It's rude!
7. Alan should (write/ have written) two essays in the exam yesterday, not one!
8. No, you (may/ should) not go out tonight.You know you're grounded!
9. Diana should have (waited/ been waiting) for me at the corner. I wonder where she went.
10. What were you doing in the park? You ought to have (done/ been doing) your homework then!
11. Yes, of course you (can/ are able to) open the window if you're too hot!
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