When he was alive, the old scientist used to say that knowledge ＿＿＿＿from practice and he gained his experience by doing a lot of practical work.
#104636
A
was coming
B
had come
C
comes
D
would come
推荐题目
--I’m going to the States?--How long ________ you________ in the States?
#101653
A
are; stayed
B
are; staying
C
have; stayed
D
did; stay
–-My TV set doesn’t work, the water tap is dripping and my car is still under repair!–-You sure ________ bad luck these days.
#102486
A
are having
B
will have
C
had had
D
had
I guess you were in a hurry. Look! You are wearing your sweater inside out.
#102622
A
hadworn
B
wore
C
arewearing
D
werewearing
I _______to go shopping that Saturday, but the bad weather made me change my mind.
#102363
A
plan
B
would plan
C
had planned
D
have planned