My friend Tom _______me __________ for an houryesterday.

It was reported that more than five hundred Chinese people ___________ in Lu Dian earthquake on Aug, 3rd, 2014.

I really enjoyed your speech, ______ there were someparts I didn’t quite understand.

Joy, what happened to the plane It ___ at midnight, but it didn’t land on the airport on time.

The chairman thought ________ necessary to invite Professor Smith to speak at the meeting.