Can you think of some cases ___ drivers obviously knew the traffic rules but didn’t obey them?

Luckily ______ to be no one under the treewhen it broke down

dioxide, which makes a ______ between us andthe sun, prevents heat from getting out of the atmosphere easily, so the earthis becoming warmer

Tina failed in the math test. Shelooks very sad. —Let’s come to cheer her________. A.up B.in C.out D.at

The board considered it urgent that those files _____right away.