In Switzerland, we never visit a friend’s house _________ calling first. It’s impolite.
A. except B. through
C. including D. without
There are so many beautiful flowers and green trees on __________ side of the street.
A. both B. either
C. several D. other
— Are you at the airport? How’s everything?
— The flight __________ to Nanjing an hour ago. I have to wait for the next flight.
A. took off B. got off
C. broke off D. fell off
— Do you miss your family when you’re abroad?
— Yes,o f course. You will miss your family __________ you go.
A. whoever B. whatever
C. whenever D. wherever
Alan has many different stamps. She __________ it for ten years.
A. collected B. is collecting
C. will collect D. has collected
We won’t put off our plan __________ it snows heavily tomorrow.
A. whether B. unless
C. because D. While
