问题
选择题
— People find it hard to get across the river.
— I think at least two bridges _____ over it. [ ]
A. need
B. are needing
C. will need
D. are needed
答案
答案：D
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— People find it hard to get across the river.
— I think at least two bridges _____ over it. [ ]
A. need
B. are needing
C. will need
D. are needed
答案：D