We thought ______necessary to invite Professor Smith to give us a lecture on how to learn English.
A.that
B.it
C.this
D.him
—How about _______ Christmas evening party?
—I should say it was _______ success.
A.a;a B.the;a C.a;不填 D.the;不填
As we all know, the present world financial crisis still has a bad on the development of the economy of every country.
A.stress
B.effort
C.effect
D.contribution
We won't be able to learn English well we learn enough words by heart and do enough reading.
A.as
B.once
C.when
D.unless
A gunman,who was later found dead, walked into an Oregon high school with a rifle and shot a(n) student to death on Tuesday.
A.bitter
B.confident
C.unusual
D.innocent
—Do you know anything about the school?
—Yes. In fact,this is the third time I here.
A.was
B.came
C.have been
D.will come
