_____exciting the news is!

It’s very convenient ______ us to buy train ticketsnow because we can buy them either from the station or on the Internet.

It seems you need to apologize quickly______ a good friend.

The student said there were a few points in the essay he _____ impossible to understand.

The time that she devotes ________ the comic stories is so much that she can’t spare any time to look after her baby