We all feel it is Jack as well as his wife that ________for their son’s bad performance at school.

As many as 150 people died in the explosion. If only the owners ____ enough attention to the safety measures!

We saw _____ UFO in the sky a week ago. It was _____ unusual thing.

Do you think the cars made in Germany better than _____ in America–Not exactly.

Jenny hasn’t come yet.—How strange! She _____.[ ]