1．The girl is very shy, and seldom speaks until she ________ to.
A．is spoken B．is speaking
C．speaks D．will be spoken
答案与解析：A 句意：这个女孩很腼腆，要不是别人和她说话她从不说话。until引导的时间状语从句中用一般现在时表示将来；根据题意，此处表示别人跟女孩说话，应用被动语态。
2．Look! There is a crowd of people over there. Go and see what ________ and if it is a bargain, buy it.
A．has been selling B．has been sold
C．is selling D．is being sold
答案与解析：D 句意：看，那边围着一群人，过去看看卖什么的。如果便宜就买。由look提供的语境看，应用现在进行时；what(东西)“被卖”，所以用被动语态。
