Cats and tigers are animals of the cat family (猫科动物), so cats __________ tigers in many ways.
7. The questionnaire takes ten to fifteen minutes to complete and can be used along with the assessment interview.
6. As there is less and less coal and oil, scientists are exploring new ways of making use of energy, such as sunlight, wind and water for power and fuel.
5. In our class, when the bell rang and the taacher closed his book, it was a or everyone to stand up.
4. Hiking by oneself can be fun and good for health. It may also be good for building.
3. Some parents are just too protective. They want to ______ their kids from every kind of danger, real or imagined.