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
Two hundred miles ______ a long distance ______ in two hours even by a fast car.
#102783
A
are, to cover
B
are, to be covered
C
is, to cover
D
is, to be covered
--Hi, Tracy, you look tired. --I am tired. I________ the living-room all day.
#104239
A
painted
B
have been painting
C
had painted
D
have painted
---Excuse me, when can we play basketball on the playground? --- Not until it ______next week.
#101640
A
repairs
B
will be repaired
C
is repaired
D
will repair
He would have been a doctor 20 years ago, but he _____ to be a teacher.
#101819
A
chooses
B
chose
C
had chosen
D
has chosen