65. The ____told us not to move about. A: fresh face officer B: fresh-face officer C: fresh-faced officer D: fresh faced-officer

It is imperative that we keep pushing the limits of our ocean. A: It is essential we keep striving to find fresh ways to overcome the challenges faced by ocean exploration. B: It is essential we should not let the ocean limit us.

We should open the window often to let ( ) in . ( ) A: fresh air B: fresh airs C: a fresh air D: fresh the air

When（）difficult problems, we should often take an optimistic attitude. A: faced B: being faced C: facing D: having faced

The fresh water produces fresh water _______.

The problems we are faced with ____.

They are faced with the problem_____continue the work.

When _____ with a strong enemy, they had always retreated. A: being facing B: facing C: being faced D: faced

____ with a difficult situation, Arnold decided to ask his boss for advice. A: To face B: Having faced C: Faced D: Facing

When ______ with a strong enemy, they had always retreated. A: being faced B: B. facing C: faced D: D. being facing