.Getting to other planets or to the moon _____ many problems

Allen TV in the living room when I home yesterday.

The flower is dead. I ___ it more water.

Today’s ceremony ____ 60 years’ development of Education in this key high school.

What’s the matter with our English teacher She always looks tired.-There are 75 students in our class. She work for more than 10 hours everyweekday.She can’t get enough rest.