1–Can you tell me where heis –Sorry,__

_____ the right decision _____ the future is probablythe most important thing we will ever do in our lives

Not until the early years of the 19th century ___ know what heat is. [ ]

Compared ordinary dolls, Barbie Dolls sell well, whose prices range 5 dollars to 100 dollars

Where _______?—I got caught in the traffic, or I would have been here sooner.