At the end of the meeting,it was announced that an agreement_______.

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.

－ What do you think of the movie?
－ It’s fantastic. The only pity is that I __________ the beginning of it.

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