I _______ you a ring if I hear anything.

I found ___________ hard to remember all the twelve star signs because they are difficult to pronounce(发音) and spell.

Do you knowtomorrow? —David? Never! He hates outdoor activities．

This piece of music is ________________ that one.

Do you like to go on the holiday in Hainan with me?— I’d love to, but I cannot ___ the time.