With the help of some students, I have found the _____ to the problem that we are short of seats for so many people.

He gave his daughter some money, ___________ she could buy an English-Chinesse dictionary. width=”120″ valign=”top” style=”width:90.35pt;padding:0cm 5.4pt 0cm 5.4pt”

The world’s population hit 7 billion on Monday among celebrations and concerns about_______ the growing number of people will affect the earth’s resources [ ]

下列诗句中划线字词解释不正确的一项是（ ）

When I got there,I walked along a winding path,listening to birds sing,watching children ________toy sailboats in a huge fountain. [ ]