All the citizens are taking actions to protect the environment，so our city is on the way_____ a clean and beautiful city.
An ant has two stomachs — one for itself, one for others.— Really? Quite interestingI ____ anything about it
n’t the first time I ________ at home,” he saidfrankly.
The CD-ROM is designed NancyJackson.
He ______ be sitting at the gate, waiting for his lostson.
