Bear in mind that you won’t be able to cancel the contract ____you’ve signed— I _____

I am sorry I can’t help you ________ your maths.—Thank you all the same. I can ask Millie ___________ help.

Susan, can you help me clean the window—Why_______ Alice is sitting there doing nothing.

_____ life exists on any other planet in the solar system still remains a question.

His sister left home in 1998, and__________ since