The rivers will become dirtier and dirtier ______ we take action to protect them.
A. since B. if C. until D. unless
—Excuse me, is the museum far from here?
—No, it’s about ______ .
A. 5 minutes walk B. 5 minute walk
C. 5 minutes’ walk D. 5 minute’s walk
Gina has been in Shanghai for ten years. Shanghai has become her second ______ .
A. family B. house C. home D. room
—Hi! My name’s Tim. It’s my first time to be here.
— ______ .
A. Very well, thank you B. It’s all right
C. That would be very nice D. Nice to meet you
—Work hard, ______ you’ll pass the exam.
—OK. I’ll try my best.
A. or B. and C. but D. so
His name is Jim Smith. His family name is .
A. Jim B. Jim Smith C. Smith D. Smith Jim
