–Were you at school when he came to see you?–Yes, I ______ a math class.A. was having B. had C. am having
Why don’t you just your own business and leave me alone?
You have made a mistake --- you have _______ the letter “e”.
News reports say peace talks between the two countries have broken down ______ no agreement reached.
—Why didn’t you try your best to get on the bus? —I tried to , but _______ I could, it started moving.
They were walking along the shore _______ a huge wave appeared out of nowhere, sweeping them out to sea.