Question

Mr．White         to hospital for an examination yesterday but he was too busy to come．

A．should come	B．should have come
C．should be coming	D．should had come

Answer 1

B

考查情态动词。should have done本应当做，但实际并没有做。句意：怀特先生昨天本应当来医院检查的，但他太忙了而没有来。