The Internet is increasingly accessible at school and at home _____many parents and teachers are sometimes not as prepared as we should be to warn children about Internet threats

Did you go to the fashion show last week—I_________，but I was fully occupied the whole week．

Excuse me, when ________ you ________ the man in blue—Last year. And I ________ him for one year.

Thousands and thousands of people attendedthe president’s inaugural ceremony，with ages ________ from 5 to 100.

We all had a lot of fun at the barbecue yesterdayPity you weren’t there—I really should have gone with you, but I ________ on some remaining problems