A．few B．those C．many D．all
单项选择题37().
A．came B．arrived C．stemmed D．appeared
单项选择题36().
A．as B．if C．because D．while
单项选择题35().
A．proposed B．developed C．supplied D．offered
单项选择题34().
A．generating B．effective C．motivating D．creative
单项选择题33().
A．employed B．created C．operated D．controlled
