Don’t litter in the street in Singapore, you could be arrested

— Did you listen to the report last Friday?— Yes, it was about the shortage of migrant workers. That was the first time I ____ about the subject. [ ]

Did Linda see the traffic accident?—No，no sooner ________ than it happened.　　　　　　　　　　　　　　　　　　

Hot ________ the night air was, we slept deeply because we were so tired after the long journey. [ ]

Listen! Someone is knocking at the door. Who _____it be—It_____ be Tom. He phoned to visit me this evening.