pity! Considering his ability and experience,he ______ better.

_____ exciting job it is to work as a guider in such a big mall.

The village has developed a lot, _____we learned farming two years ago [ ]

Up to Tuesday’s attack, the worst school shooting in the USwas in March 1998 in Jonesboro,________ two boys, aged 11 and 13, shot and killed a teacher and four girls

It is already well understood___________ causes the global warming.