The chairman thought _______ necessary to invite Professor Smith to speak at the meeting .
#17176
A
that
B
it
C
this
D
him
推荐题目
Many people have been ill from a strange disease these days, _____ we’ve never heard of before.
#15396
A
it
B
that
C
one
D
this
As the intelligence of robots increases to match ________ of humans，we may use them to expand our frontiers.
#15222
A
it
B
that
C
which
D
the
______was known to them all that William had broken his promise______ he would give each of them a gift.
#17064
A
As, which
B
What, that
C
It , that
D
It , which
This sweater fits me, but I can’t afford to buy __________. I have to choose _________ which is cheap enough for me.
#14914
A
it; that
B
that; it
C
it; one
D
that; the one