Question

11．他答復說他很高興接受我們的邀請．
He replied that he was very happy toacceptourinvitation．

Answer 1

分析 accept，invitation．

解答 答案：accept，invitation．結合be happy to do sth高興做某事．accept接受，后加名詞invitation邀請，故答案是accept，invitation．

點評 某些形容詞+不定式"的結構中，不定式與句子主語有動賓關系時．（常用于此結構的形容詞有：difficult，easy，hard，interesting，pleasant，nice，bitter，fit，dangerous，light，heavy，important等）
The picture is pleasant to look at．
The sentence is not easy to understand．
The street was difficult to find on the map．