This has made _______ possible for us to catch up with the developed countries.
A that B it C us D our country
Either you or one of your students _________ to attend the meeting that is due tomorrow．
| A．are | B．be | C．have | D．is |
I was born in New Orleans, Louisiana, a city name will create a picture of beautiful trees and green grass in our mind．
| A．which | B．of which | C．that | D．whose |
— The food here is nice enough．
— My friend ______ me a right place．
| A．introduces | B．introduced | C．had introduced | D．was introducing |
______ the police thought he was the most likely one, since they had no exact proof about it, t hey could not arrest him．
| A．If only | B．As long as | C．Although | D．As soon as |
Looking people in the eye ______ sometimes make them nervous and embarrassed．
| A．must | B．can | C．should | D．might |