The maths problems are too hard, only ______ people can work them out.
---- You don't know what great difficulty I had _____ to get the two tickets. ---- But the film is really worth_______ twice.
— You should be careful when ________. — Yes, I will. I’d like to know when ________ to have a rest.
The red shirt doesn’t suit you. I think that black one __________good _________ you.
The girl is so excellent that you ________ praise her too much.
The food in the fridge ________ bad. Throw it away, please.