You must stop and wait for your turn when you see the sign______.
A. 
B. 
C. 
Mr. Green ____ go to bed ____ he finished his work last night.
A. does; untilB. don’t; untilC. didn’t; until
when I heard the bad news I couldn’t help ________ .
A. laughing B. dancing C. crying
Kate doesn’t run as ________ as Jim.
A. fast B. faster C. fastest
------What kind of ticket do you have?
------ We have tickets $105 the hard sleeper.
A. at; for B. for; atC. at; to
It took us ____ to finish the new work.
A. three hour and a half B. three and a half hour C. three and a half hours
