Fill in an appropriate modal verb that matches the meaning in brackets (present or past modals of deduction). 1 You __(enter) without permission. (You aren't allowed.)
2 It's a nice day, we (have) lunch in the garden. (Let's ...)
3 He (work) overtime yesterday. (It wasn't necessary.)
4 I (eat) all that pizza. (I regret it.)
5 Tim ___(read) when he was four. (He wasn't able to ...)
6 Jane __(get) a promotion.
(Perhaps.)​

1 You shouldn't enter without permission. (You aren't allowed.)
Explanation: "shouldn't" is used to give advice or express prohibition. In this case, it implies that it is not allowed to enter without permission.

2 It's a nice day, let's have lunch in the garden.
Explanation: "let's" is a contraction of "let us" and is used to suggest or make a suggestion. In this case, it suggests having lunch in the garden because it's a nice day.

3 He didn't have to work overtime yesterday. (It wasn't necessary.)
Explanation: "didn't have to" is the past form of "don't have to" and is used to express absence of obligation. In this case, it means that it wasn't necessary for him to work overtime.

4 I shouldn't have eaten all that pizza. (I regret it.)
Explanation: "shouldn't have" is used to express regret about a past action. In this case, it means that I regret eating all that pizza.

5 Tim couldn't read when he was four. (He wasn't able to ...)
Explanation: "couldn't" is the past form of "can't" and is used to express inability or lack of ability in the past. In this case, it means that Tim wasn't able to read when he was four.

6 Jane might have gotten a promotion.
Explanation: "might have" is used to express possibility or probability in the past. In this case, it means that there is a possibility that Jane got a promotion.