______! The rescue workers are coming.

—Where did you      English ?
—When I was in college .

Mary ________ a smile when she heard her family went to Australia without her.

— You should have told her about the meaning of the gesture.
— I meant ______, but I had some unexpected guests.

Mr. Black is a careful and experienfed engineer, so he is often _____ to finish some challenging tasks.

In our country the cold weather in the north_____ sharply _____the hot weather in the south.

The engine of the ship failed and the bad weather ______ the helplessness of the crew at sea.

New ways have been found to prevent the river ______.

Rod loves      clocks.  However, he never manages to put them together again.

______ at the door before you enter my room, please.