可以

This film is worth seeing.

It's not a big place. It is worthy of a visit, though.

This is open to discussion.

A single spark can start a prairie fire.

I don't mind helping, but I draw the line at doing everything you want me to do.

You may well say so.

in the foreseeable future

be exemplary; may be taken as a warning

be understandable

it can be asserted that; one may predict that

‘Is it all right to smoke here?' ‘No, it isn't.'

You can't go. / You are not permitted to go.

You may go.

This film is pretty good; you might as well go and see it.

‘How's his English?' ‘Not bad.'

‘How are things going with you?' ‘Pretty good.'

It went on well for a while.

It's really hot indeed.

Those remarks of yours were more than they could stomach.