—ThereisasmileonSam'sface.Hemustbe
问题详情:
—There is a smile on Sam's face. He must be ________ that his answer is right.
—I think so. No one did as ________ as him in our class.
A. uncertain; well B. certain; good C. uncertain; good D. certain; well
【回答】
D
知识点:相似 相近词比较
题型:选择题