We still have a long way to go to solve all the problems ________ the Yangtze River.

Miss Fang is English teacher. is a good teacher.

The astronauts were so struck by _______beauty ofnature that they took lots of pictures in _______space.

I’d like to have one more look around. By myself this time.– __________.

no idea. I just pretended nobody wasat home, so I didn’t ask who _______ was.