It is desirable that the airplane ___________ as light as possible.
（A）is
（B）were
（C）be
（D）had been
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更多大学英语选择题200道试题
- 1Although I liked the appearance of the house, what really made me decide to buy it was the beautiful _____________ through the window.
- 2"Are you going to the football game " "No.The tickets are _______ expensive for me."
- 3This book is full of practical _____________ on home improvements and repairs.
- 4I can hardly believe my eyes.This ___________ man is actually a scientist who once won the Nobel Prize.
- 5The mere fact _____________ most people believe a nuclear war would be madness doesn't mean it will not occur.
