有英语练习题求解
9.Human behavior is mostly a product of learning,whereas the behavior of an animal depends mainly on __________.
A.consciousness B.impulse C.instinct D.response
10.________ such a good chance,he planned to learn more.
A.To be given B.Having been given C.Having given D.Giving
11.Despite their good service,most inns are less costly than hotels of_______ standards.
A.equivalent B.alike C.uniform D.likely
12.As we can no longer wait for the delivery of our order,we have to ________ it.
A.postpone B.refuse C.delay D.cancel