Use the words and phrases you have learned in unit 1 to fill in the following blanks. The students ______ (向---走去 ) the cafeteria when the classes were over. Up to now the researchers __________(还没有找到) the sources of coronaviruses. A black man ________ (从大树后面出来) a big tree which frightened the little girl into screaming. I heard a_________ (微弱的) voice for help, so I ran towards the building immediately. It’such a fine day for outdoor activities, I really _________( 不想写) my term paper at home. The colorful lights __________(照亮了) the whole neighborhood beautifully. He resumed his regular working hours ___________(在---不久) he came out of the hospital. __________(看见) a dog running toward me, I couldn’t help stepping back. The old man didn’t know where he was when he ________(苏醒过来). The seriously ill patient __________(很可能) survive with the careful treatment of doctors and nurses.