One ______ easily lose his way when he visits or comes to a new place.—I agree with you.

The question was so ________ that there was a ________ expression on the teacher’s face.

A little boy wrote____ “U” and___ “n” on the wall.

More TV programs, according to government officials, will be produced _____ people’s concern over food safety.

Many animals _____________the same fate as the largeextinct elephant because of the environment.