The play had already been on for quite some time when we _______ at the New Theatre.

Professor James will give up a lecture on the Western culture,but when and where _______ yet.

—Ouch!You hurt me!—I am sorry.But I___any harm.I___to drive a rat out.

—I have got a headache.—No wonder.You___in front of that computer too long.

Cathy is taking notes of the grammatical rules in class at Sunshine School,where she_______English for a year.

As the years passed,many occasions—birthdays,awards,graduations—_______with Dad’s flowers.

—I saw Jane and her boyfriend in the park at eight yesterday evening.—Impossible.She _______ TV with me in my home then.

I___there little more than a week when I set to work with the scientist.

They became friends again that day.Until then,they_____to each other for nearly two years.

When I called you this morning,nobody answered the phone.Where______?

—Did Alan enjoy seeing his old friends yesterday?—Yes,he did.He___his old friends for a long time.

After he had won the first prize, Mr. Su ____ to a restaurant to celebrate with us.

—Has your father returned from Africa yet?—Yes,but he _______ here for only three days before his company sent him to Australia.

—Have you handed in your schoolwork yet?—Yes,I have.I guess it _______ now.

They          two free tickets to Canada, otherwise they’d  never have been able to afford to go. 

If Newton lived today,he would be surprised by what_____in science and technology.

I didn’t get into the two-hour quarrel; I know how it ______, though.

—It was really very kind of you to give me a lift home.—Oh,don’t mention it.I _______ past your house anyway.

—How can I apply for an online course?—Just fill out this form and we _______ what we can do for you.

Over the past decades, sea ice _____ in the Arctic as a result of global warming.