6.　 long, skating, you, been, how, have

___________________________________________________

5.　 old, snow globe, I, when, got, was, I, years, first, my, eleven

___________________________________________________

4.　 twelve, they, they, baseball, since, have, were, been, play, learning, to

___________________________________________________

3.　 anyone else, let, if, know, collects, me, you, who, coins, please

___________________________________________________

2.　 stuffed animals, nine, collecting, she, been, for, has, years

___________________________________________________

1.　 raises, every hour, skate, for, for, they, charity, each, ten yuan, student

___________________________________________________

10. How long have you been surfing the Internet? (6 hours)

__________________________________________________

9.　 How long has Lucy been dancing in the room? (one and half hours)

_____________________________________________________

8.　 How long has Tim been swimming in the pool? (2 p.m.)

_____________________________________________________

7.　 How long have you been reading that book? (last week)

_____________________________________________________