While she_____ on the phone, a man walked into her room.
| A．is talking | B．talked | C．was talking | D．talk |
Those are my twin sisters. _______ of them are interested in soap operas.
| A．Each | B．All | C．Both | D．One |
—What is Mom cooking in the kitchen?
—Chicken, I guess. How nice it _______!
| A．looks | B．smells | C．tastes | D．sounds |
_______ sunny day it is! It’s really good to go out for a hiking.
| A．What a | B．What | C．How a | D．How |
I thought _______ very useful to know the customs of foreign countries.
| A．that | B．to coming | C．it | D．to go |
Make sure to _______ the lights when you leave.
| A．turn over | B．turn left | C．turn off | D．turn right |