Li Ling was a diligent boy . He ____ go to school though it was raining hard .
A.was able to | B.could | C.couldn''t | D.wasn''t able to |
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Li Ling was a diligent boy . He ____ go to school though it was raining hard .
A.was able to | B.could | C.couldn''t | D.wasn''t able to |