_____bargaining is so interesting?—Sometimes it is a test to see who stand their ground for the longest.

I often think of the days _____ I stayed with the experts, _____ has a great effect on my job

__________ do you study for atest —By asking the teacher forhelp.

In this seaside resort, you can_________all the comfort and convenience of modern tourism.[ ]

The telephone _______ three times in the last hour, and each time it ________ for my father