While the dog, you should take care not to Otherwise, it may be dangerous to strangers.
John received an invitation to dinner, and with his work ________, he gladly accepted it.
The school' s music group will be giving a big show tomorrow night and two ___ on the weekend.
-- Didn't you have a good time at the party? -- Of course I did. As a matter of fact, I had such fun that time seemed to __________ so quickly.
They became friends again that day. Until then, they _______ to each other for nearly two years.
In my opinion, life in the twenty-first century is much easier than ___________.