My favourite pet is _____cat. ______fur is grey and white.

We are now living in a high-tech age ____easy things are becoming complicated

running hard to catch up withthe rest of his team when he fell over his own feet. When he struggledup, he felt his left ankle ______, and found his left hand ______ and his nose______.

You wouldn’t believe how quickly my English _____ because of that so far.

I really don’t know _________ I put my wallet after I paid the bill．