_____ twice a year, whether it is a car or a bus, is a rule that every driver must obey in this city.
Even if I had taken part in the 400-meter relay race in the sports-meet, our class___________ the race. I’m ________ weight this year.
_________, the forest fire would have been discovered much earlier.
I insisted that a doctor _______ immediately.
--- I’ll leave for Beijing this afternoon to see the opening ceremony of the 29th Olympic Games. -----If you______ tomorrow, I would go with you.
---- If__________, some terrible diseases would spread in the stricken-areas after the terrible earthquake in Wenchuan, Sichuan Province. ----So people there were in______ need of medical teams.