Darkness has now ( ) and the moon and stars shine hazily in the clear sky in the late autumn.

　　A. decay

　　B. descend

　　C. deduct

　　D. defense

　　【答案】B。“夜幕现在已经降临，晴朗的天空里月影婆娑，星光朦胧”。Decay：衰退、衰减;descend：下降、降临;deduct：扣除、演绎;defense：防御、防护。根据句义，可知本题选B。

　　We would like to inform you that Valmont blue silk-rayon blend you ordered is ( ) out of stock.

　　A. permanently

　　B. previously

　　C. currently

　　D. eventually

　　【答案】C。“我方想通知你方预定的Valmont蓝色人造纤维真丝混纺的货品当前库存量不足”。选项A：永久的;选项B：先前的;选项C：目前的;选项D：最终的。根据句意可知最符合句意的是选项C。