Pay attention to _____ road sign while driving in _____ foreign country.
| A．a;a | B．The ; the | C．the; a | D．a; the |
Most of us found ______ difficult to finish the work in such a short time.
| A．this | B．which | C．what | D．it |
—Do you know where Mary is?
—No, I don’t. I ______ her since last Sunday night.
| A．haven’t seen | B．didn’t see | C．won’t see | D．don’t see |
You still go to the gym every day, ______ you?
| A．do | B．don’t | C．are | D．aren’t |
The boy ______ is standing at the school gate is our monitor.
| A．which | B．whose | C．who | D．when |
Alice wants to become ______ singer when she grows up.
| A．不填 | B．the | C．an | D．a |