To their disappointment, the couple __________ the house but couldn't find the missing ring, which was to bring them into great trouble.
On National Day, people sing and dance to ________the birth of our country.
When a pencil is partly in a glass of water, it looks ________ it were broken.
—Is John coming by train?—He should, but he ________ not. He likes drivinghis car.
The audience ________ to see who would win the gold medal.
She liked the article so much that she ________ her own work and copied it down.