—Excuse me, how can I get to the museum?-- Sorry. It’s my______ time to he here.A. one B. first C. once
Computers of this kind __________. They are out of stock (脱销) now.
My teacher has given me lots of __________. They’re very useful.
—Do you like tea or coffee? —Coffee. I prefer coffee __________ milk.
What __________ good time we had having a picnic yesterday!
We never know____________ because happiness is everywhere.