题目内容：

1He asked it we___swim and offered to teach us if we____.
A.can,will B.could,would
C.can,won't D.could,wouldn't
这里would是愿意的意思吗?
2Two-third of the coins dug up on the island ___from 221 BC.
A.dates B.date
C.is dated D.are dated

优质解答

1.B,He asked if we___swim 这句是并与从句,if翻译成“是否我们会游泳”,时态和主句保持一致,would是愿意的意思,意思是“如果我们愿意去的话,他会教我们”
2.B.意思是“从那个小岛上挖掘出来的硬币其中的三分之二追溯于公元前221年”
dug up on the island 作后置定语修饰the coins.
date from意思是追溯于...