His father, who is said to be teaching in Australia, ____ in Nanjing University for more than 10 years

Three hours with your girlfriendto be a short time

The floor is dirty Can anyone cleanit— I do it all the time

Mr．Jones was so late that his dinner got cold; his wife ______ warm it up．

How can you expect him to make any progress ________ you never give him a chance to have a try?