By the time my parents reached home yesterday, I __________ the dinner already.

The sick woman is ______ weak ______ look after herself.[ ]

You can come ______ on Tuesday _______ on Friday, but whichever you choose, please let me know.

The maths problem is ______ hard for us ______ solve.

I hear you’ll have _________ one-week holiday _________ next month. Is that right?