未知题型 It is quite necessary for a qualified teacher to have good manners and _________ knowledge.A) extensive B) expansiveC) intensive D) expensive

未知题型 Mike’s uncle insists ______________ in this hotel. A) whatever B) whomever C) whichever D) whoever

未知题型 In a sudden _____________ of anger, the man tore up everything within reach. A) attack B) burst C) split D) blast