You needn’t take an umbrella. It isn’t going to rain.— Well, I don’t know. It do.

Passengers _____ fasten their seat belts immediately after taking their seats. The belts should remain buckled during the flight whether or not the “fasten seat belt” light is on.

d by the police, the terrorists made their______ attempt to explode the bomb that they carried.

Where is Mr. Wu I haven’t seen him for several days.—He ________ America and he ________ from his home since last week.

Helen is a thoughtful girl. — Yes. I think she is _____ plan everything well.