This is a big class, and ___ of the students are girls.A. two thirdB. second threeC. two thirds
There ________ traffic jams in the air in the 2150s.
People often lose things when they are in _______ hurry.A. 不填 B. the C. a
---What can I do for you?---____________.
It’s a bad habit to ______ what you can do today until tomorrow.
Don’t worry. We are old enough to look after ______.