Our physics teacher told us light __________ faster than sound last term.
I think running is an easy way to keep healthy. ----_______, but Bill doesn’t think so.
I had to buy of these books because I didn’t know which one was the best.
My uncle is a careful driver, but he doesn’t drive as _________ as my friend.
______ ,Andy found the shop on her left.
The boss has given everyone a special holiday, so they go to work tomorrow .