The old man warned us_____ here, it’s dangerous.
A. swim B. not to swim C. not swim
Tom used to_____ up late, but now he gets used to _____ up early and do some exercise in the morning.
A. get; to get B. getting; get C. get; getting
Michael was watching TV_____ his father came in.
A. when B. while C. as soon as
--I heard the high-speed train between Beijing and Tianjin ran_____ 350 kilometers a hour.
--That’s right. I’m looking forward to _____it one day.
A. at; take B. at; taking C. by; take
Look at these pictures carefully, and decide which sentence is right.
A. Coke is as cheap as orange juice.
B. Milk is cheaper than orange juice.
C .Orange juice is not so cheap as coke.
Which sign tells us to go straight ahead?