our city has a good public transport system,_______ private car is becoming _________ popular means of transport.
Rolls-Royces is rhave two and now they are buyingthird.
The moment the ambulance(救护车)came to the hospital, the sick man ___________ to the operation room
This is the first time that I _____ at the meeting
Look! The plane is sending up signal “SOS”. It ________ be in danger.