english 12

1.Ecologist try to find out how the earths environments can be preserved so that living things will continue to survive on the planet.

a) now that b) in order to c) in case d) so that

2. As children get older, their questions get harder to answer

a) As b)because of c) in order that d) however

3.in is easier to study animals and plants than human begins, because plant and animal behaviors can be controlled and monitored

3)because