单项选择题
A．picking.., in the mountains B．picking... on the mountain C．having picked... from the mountains D．picking... from the mountains
I see four kinds of pressure working on college student...
单项选择题I see four kinds of pressure working on college students today: economic pressure, parental pressure, peer pressure, but self-induced pressure（）.
A．and B．or C．Nil D．with
The traffic police stopped three trucks heavily loading...
单项选择题The traffic police stopped three trucks heavily loading with merchandise that looked as grain bags（）.
A．that were loading... like B．loaded with... like C．to load with... for D．loaded with... for
Only individual benefactors and ad hoc grants have made...
单项选择题Only individual benefactors and ad hoc grants have made possible the ecological surveys already undertaken（）.
A．additional B．governmental C．special D．organizational
