With the help of new computer programs, we can solve many problems quickly and accurately.
A.We can solve problems quickly and accurately without computers.
B.New computer programs have enabled us to solve many problems quickly and accurately.
C.The new computer programs are quick and accurate.
D.New computer programs are not able to solve many problems quickly and accurately.

The word “problem" in paragraph 5 could best be replaced by the word_______
A.dilemma
B.mistake
C.danger
D.pain

Up to now, the teacher __________ our class three tests in English.
A.has given
B.is giving
C.gave
D.gives

My sister loves watching the stars ______ night.
A.on
B.in
C.at
D.for

If you park your car in the wrong place, you must pay a(n) _______.
A.ticket
B.attention
C.fee
D.fine

If people ______ energy, there will be no shortage of electricity.
A.save
B.waste
C.use
D.destroy

Question 51: A. like B. as c. alike D. with
A.like
B.as
C.alike
D.with

A.disapprove
B.dispose
C.discard
D.throw

A.bring
B.take
C.steal
D.offer

All of the following is true EXCEPT _________ .
A.the editor reads the literature and copies words on cards
B.the editor sorts the cards out himself
C.the editor has the right to choose the meanings of words
D.the editor deífines words after sorting out all cards