问题
选择题
The flowers _______ sweet in the botanic garden attract the visitors to the beauty of nature.
A．to smell
B．smelling
C．smelt
D．to be smelt
答案
答案：B
由于attract作谓语，而且无连词，所以只能用非谓语形式填空。smelling sweet in the botanic garden是现在分词短语作定语，相当于定语从句that/which smell sweet。