As the president’s car appeared, the waiting crowds ______ loud cheers.
The law required that everyone ________ his car checked at least once a year.
.Our teacher is very busy.He is ________ in working out a teaching plan.
Beijing Man used fire for cooking food and also for light, warmth and ________ wild beasts.
The doctor strongly recommended that he ________ a holiday.
Mr.Smith, there's a man at the front door who says he has news for you ________ vital importance.