— Sorry I’m late. I got stuck in traffic.

— _________. You’re here now. Come in and sit down.

A．You are welcome    B．That’s right       C．Never mind        D．I have no idea

—I’m interested in that beautiful MP5 player. How much do you charge for it?

—$ 150. And it’s of the value.

—Well,         . but I can’t afford it. Thank you anyway.

A．please lower the price                   B．it’s worth that

C．it’s really nice                         D．that’s too dear

Help disabled people whenever you can ______ you will make the world a nicer place to live in.

A．unless            B．or               C．and              D．but

___ that may generally reduce the amount of labor needed on construction sites by 90 percent.

A．So clever the construction robots

B．Such construction robots are clever

C．So clever are the construction robots

D．Such clever construction robots are

___ most of the earth’s surface is covered by water, fresh water is very rare and precious.

A．As               B．Although          C．If                D．Once

Helen was much kinder to her youngest son than to the others, ______, of course, made the others envy him.

A．who             B．which            C．what             D．that

_____to reach them on the phone, we sent an email instead.

A．Fail              B．Failed            C．To fail            D．Having failed

He let me repeat his instructions_____ sure that I understood what was _____ after he went away.

A．to make; to be done B．making; doing      C．to make; to do      D．making; to do

— It’s the classroom! So you ______ know eating is not allowed here.

— Oh, sorry.

A．need             B．will               C．may              D．must

—You don’t look well． Are you ill?

—No, the mid-term exam is coming and I       reading until midnight．

A．stayed up         B．am staying up       C．have stayed up     D．will stay up