－Let me help you, Dick．

－Thank you．I can do it．Here's ________ to hold all these things．

A．a big enough case

B．an enough big case

C．a case enough big

D．enough a big case

First, it is important to recognize what kind of person you are and which special qualities make you different from ________．

A．everyone else

B．the other

C．someone else

D．the rest

Don't come to my house to visit me between 8 a.m．and 4 p.m．, ________ I am always is school．

A．by which

B．on which

C．during which

D．which

You've been working so hard for nearly a month．Relax yourself, or you will ________ sooner or later．

A．put down

B．get down

C．break down

D．turn down

It is pretty well understood ________ controls the flow of carbon dioxide in and out the atmosphere today．

A．that

B．when

C．what

D．how

After Yang Liwei succeed in circling the earth, ________ our astronauts desire to do is walk in space．

A．where

B．what

C．that

D．how

I'd appreciate ________ if you would like to teach me how to use the computer．

A．that

B．it

C．this

D．you

Eugen's never willing to alter any of his opinions．It's no use ________ with him．

A．to argue

B．arguing

C．argued

D．having argued

One of the best ways for people fit is to ________ healthy eating habits．

A．grow

B．develop

C．increase

D．raise

Although ________ happened in that developed country sounds like science fiction, it could occur elsewhere in the world．

A．this

B．what

C．how

D．it