__________ we know,there are l07 elements found in nature.
A.so far as
B.As for
C.Just as
D.So long as
A.so far as
B.As for
C.Just as
D.So long as
A.ends
B.results
C.effects
D.causes
A. meet
B. fall within
C. reach
D. get into
We don't know what the surface of Venus might______.
A. look as
B. look like
C. look over
D. look about
Life is changeable.We don’t know what we will___________ around the next corner
A.come out
B.come across
C.come to
D.come on
We didn't know his telephone number, otherwise we______him.
A.would telephone
B.would have telephoned
C.had telephoned
D.must have telephoned
A.Sorry,I don´t know
B.Can we get some discount for weekend
C.We will be attentive to it as soon as possible
D.We do have rooms for those days
According to the author, most of the time we don't know __________.
A. what happiness is
B. how to take care of kids
C. what brings happiness to us
D. how to give our kids lasting happiness
A.considerate...wouldn't have begun
B.inconsiderate...would have begun
C.considerable...wouldn't have begun
D.inconsiderable...wouldn't begin
A.It beats me.
B.How can I know?
C.What" s the point?
D.It doesn" t matter if they don"t.