We _____ obey the new traffic rules to improve our road safety.
A. can B. must C. need D. may
It is seven o’clock. You will be late for school ______ you get up right now.
A. unless B. until C. when D. though
My grandparents are old, ______ they still work in the fields every day.
A. or B. so C. but D. and
We are so glad to see that Shanghai is developing _______ these years than ever before.
A. quickly B. more quickly C. less quickly D. the most quickly
The food smelt so ________ that nobody in the restaurant wanted more.
A. delicious B. well C. bad D. hardly
We were so proud ______ winning 38 gold medals at the 2012 London Olympic Games.
A. in B. of C. with D. for
