The job was a great challenge and the bad weather _________ our difficulties．

—How could you________ my mother so easily in the crowd?
—Because she stood out in her red dress.

According to the air traffic rules，you should        your mobile phone before boarding．

After he retired from office，Rogers        painting for a while，but soon lost interest．

The part he ______ in the film was popular with the audience.

Though having lived abroad for years, many Chinese still _____ the traditional customs.

When such an organised group became too large for its members to travel together comfortably, it would ______.

By the time Jack returned home from England, his son _____from college.

I was still sleeping when the fire _______, and then it spread quickly.

At first they worried about the situation but things ____ quite well.