5. Change the suggestions below using ought to, ought not to, might as well or there's no point in: [5] Example: Let's not take the lift -- he lives only on the first floor. There's no point in taking the lift. a) Don't take your children to see that film – it'll frighten them. b) Let's not sell it - it's not worth anything anyway. c) Why don't we give it away? – it's not worth anything anyway. d) Don't ask him -- he doesn't speak English. e) Let's not talk about it now - the children are listening.

"Ought to" is a modal verb that, in general, functions in a way similar to "should". It is used to indicate something that is ideal, desired, or better, according to a situation.
Let's take letter E above as an example. The situation is that we need to talk about something, but the children should not hear what we are saying. Thus, we ought not to talk about it now, or we ought to talk about it later.

"Might as well" can be used to indicate that two things or actions will have the same result.
Let's take letter C above as an example. Something, an object, is not worth anything. We can keep it or we can give it away - both actions will have the same result, since the object is not worth anything. Thus, we might as well give it away.

Finally, "there's no point in" indicates that an action is useless, unfruitful. Doing it will not change anything.
Let's take letter D above as an example. If someone does not understand what you are saying because they do not speak the same language as you, then asking him a question will be useless. Thus, there's no point in asking him.

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