______ their arrival in Australia,Sir Joseph Banks and his team were amazed the exotic plants and

问题描述:

______ their arrival in Australia,Sir Joseph Banks and his team were amazed the exotic plants and
______ their arrival in Australia,Sir Joseph Banks and his team were amazed the exotic plants and set out to record and collect them instantly.
A.On;at
B.At;by
C.With;about
D.Upon;for

这里填A.On...at
On后面接动词状名词,表示“一.就.”的意思.
be amazed at something