5. —How did you find your sister in such a big and strange city?
—I ____ her in the railway station when I was looking for the police for help .
| A．came about | B．came out | C．came up | D．came across |
John is very __________. －if he promises to do something he’ll do it.
| A．independent | B．confident | C．reliable | D．flexible |
----- “Where is Mother.”
------ “She is still in the kitchen. She _______ the housework all morning.”
| A．is doing | B．was doing | C．has done | D．has been doing |
In the late afternoon, it is cold that our water bottles froze.
| A．as | B．such | C．so | D．too |
I’d like to go straight to help people, ________ when they are in trouble.
| A．especial | B．special | C．specially | D．especially |
My plane _________ at 8:30 am, so I _________ home early tomorrow morning.
| A．leaves; leave | B．leaves; am leaving |
| C．is leaving; am leaving | D．is leaving; leave |