THE TENSES - 04
(earn) a lot of money in his present job.
02 -- He (earn) a lot of money by the end of this year.
03 -- He (earn) a lot of money before he retired last year.
04 -- They (dance) non-stop for two hours now. I guess competition may well go on all night long.
05 -- They (all dance and enjoy) themselves when the fire broke out.
06 -- They (dance) non-stop as long as the band plays.
07 -- She (be out) every single night so far this month.
08 -- He (write) a story for at least a month now.
09 -- He (compose) his first symphony when he was only fifteen.
10 -- She (be fast asleep) when the guests arrived last week.