单选题 1.  David has ______ much work to do that he is staying late at his office.
【正确答案】 B
【答案解析】本句的意思是：戴维有如此多的工作要做，以至于他要在办公室待到很晚。这是so...that的句型。这个句型的结构是so+形容词或副词+that+...，或so+形容词+a/an+单数可数名词+that+...，或so+形容词+可数名词复数/不可数名词+that+...。