There was a __________look on her face because a________ problem _________the little girl.
| A．puzzled; puzzled; puzzled | B．puzzling; puzzling; puzzled |
| C．puzzled; puzzling; puzzled | D．puzzling; puzzled; puzzling |
______ recent report stated that the number of Spanish speakers in the U.S. would be higher than the number of English speakers by ____ year 2090.
| A．A; the | B．A; / |
| C．The; / | D．The; a |
--Did he notice you enter the room?
--I don’t think so. He ________ to the radio with his eyes shut.
| A．listened | B．was listening |
| C．had listened | D．has listened |
It is ten years since we ________ each other. We have been working together.
| A．know | B．knew |
| C．get to know | D．got to know |
I asked my English teacher and he replied with a ________look.
| A．determine | B．determines |
| C．determining | D．determined |
The plane takes off at 6:00 p.m. So I have to arrive at the airport ________ 5:30 p.m. at the latest.
A after B. since C. until D. by