They regard ______ as their duty to provide the best service for their customers. A) this B)

They regard ______ as their duty to provide the best service for their customers.A．thisB．w

______ somewhat ambitious as well as naive, they decided to extend their graduate educatio

They spend all their spare time, _________ their spare money, on their experiments. A：as

Children used to______their parents; now they are inclined to regard them as equals.A．turn

As regards our foreign policy, it is no less our interest ______ our duty to maintain the

They regard _________as their duty to provide the best service for their customers.