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
If this product does not give you complete satisfaction, please return it to the manufacturer, stating when it ________.
#99492
A
is purchased
B
will be purchased
C
purchases
D
has purchased
The fog was so heavy this morning that drivers could hardly _______ the things even ten meters away from them.
#99121
A
make out
B
turn out
C
find out
D
figure out
Look out! Don’t get close to the building. It _________.
#99785
A
was rebuilt
B
has been rebuilt
C
is being rebuilt
D
had been rebuilt
The boy hot on the forehead. He must be sent to the hospital at once.
#100815
A
is felt
B
felt
C
feels
D
was felt