（）能作为回填土料。
A.碎石
B.淤泥
C.草皮
D.生活垃圾
参考答案：A
稽核员在营业期间负责监督本营业厅营业员办理清退预存款、销号退款、当日收费返销等各项业务办理是否符合规定。
he shop around the corner caught fire last night. The police are now _____the matter.
A．seeing through
B．working out
C．looking into
D．watching over
