We must（）that the experiment is controlled as rigidly as pos

A.mustn't

B.can't

C.needn't

After the experiment, we will talk about our observation. (对画线部分提问)

_____will you____ after the experiment?

A、of course

B、above all

C、for sure

D、not at all

A.assure

B.ensure

C.secure

D.insure

A

The aim(目的) of students who come to school is ro srudy． But if we haven't a right way to study we will waste the time or the money． The following are ways for studying．

The best time for reading js morning． Because in the morning， the air is fresh and our minds are clear．For that reason，we can get good results．

Jt- studying we must be'patient(耐心的)． If w．e don't understand a text well，we must read it again． We should not read the next one till we have learned the first one well．

When we are studying，we must put our hearts into the book． We can not read absent-．mindedly(心不在焉地) ，or we can get nothing from the book while we are reading．

We must always ask "whys"． If it is not well understood，write it down and ask our teach-ers or parents，brothers or friends，in any possible way． We must know it completely and then our knowledge can be used well．

Though there are many ways for studying，however，the above mentioned(提及的) will be quite enough if we can keep them in heart and do so，

( )21． The article tells us_________

A． to read in the morning

B． to pay close attention to ways for studying

C． the importance of reading

D． to have patience in studying

此题为判断题(对，错)。

A、acquire

B、respond

C、request

A. to control

B. controlling

C. controls

D. controlled

The experiment was ______ easier titan we had expected.

A. more

B. much more

C. much

D. more much