问题详情:
You must keep your eyes _______ while the eraser is passing.
A. close B. closed C. closing D. to close
【回答】
B
知识点:动词和动词短语
题型:选择题
问题详情:
You must keep your eyes _______ while the eraser is passing.
A. close B. closed C. closing D. to close
【回答】
B
知识点:动词和动词短语
题型:选择题