—How much do I owe you for lunch? —________________. It’s nothing.
I like getting up very early in summer. The morning air is so good .
-----She looks very happy. She have passed the exam.------I guess so. It’s not difficult after all.
----Did Peter fix the computer himself?-----He , because he does know much about computers.
. your rotten idea, we went the long way .
year after year , tigers are becoming fewer and fewer .