of the students in my school are girls.
| A．Two fifths | B．Second fifths | C．Two fifth | D．Fifth two |
The man was so funny that Amy couldn’t help_____.
A.laughsB. laughingC. to laugh
--Would you like to ride bicycles with us tomorrow?
--Yes,I’ll go_____ I’m free.
A.becauseB. whenC. if
The old man warned us_____ here, it’s dangerous.
A.swimB. not to swimC. not swim
Tom used to_____up late, but now hegets used to _____up early and do some exercise in the morning.
A.get; to getB. getting; getC. get; getting
Michael was watching TV_____ his father came in.
A.whenB. whileC. as soon as