A：view
B：exercise
C：practice
D：reality
下列各句中，没有语病的一句是（ ）
汽车尾气排放一定会愈演愈烈。（ ）
①蝉噪林愈静，鸟鸣山更幽 ②竹外桃花三两枝，春江水暖鸭先知
③竹怜新雨后，山爱夕阳时 ④深处种菱浅种稻，不深不浅种荷花
It was only after he had read the papers ________ Mr. Gross realized the task before him was extremely difficult to complete.
