All of the things there are inexpensive, with prices ________ from about $1 to $10.
A．ranging B．changing C．distinguishing D．differing
the sentence , so he asked the teacher to explain it again.
A．Not having understood B．As he didn’t understand
C．Having not understood D．He didn’t understand
——The weather is too cold ____ March this year.
——It was still ____ when I came here years ago.
A．for; colder B．in; cold C．in; hot D．for; hotter
The “Warning” reads: “Under no circumstances _____ be kept near fire!”
A．the chemical should B．the chemical shouldn’t
C．should the chemical D．should the chemical not
Had the boy worked harder, he ______ the exam.
A．must have got through B．could get through
C．ought to get through D．would have got through
________ is surprising to us is that Tom, for _______ English was once boring, can speak English fluently as though he were a native speaker.
A．As; whom B．What; whose C．It; whose D．What; whom
