Students should learn how        problems.
#49250
A
solve
B
solving
C
can solve
D
to solve
推荐题目
It took Andy two hours ____ his homework yesterday evening and I spent ____ mine. .
#50990
A
doing; less time finishing
B
doing; more time to finish
C
to do; more time to finish
D
to do; less time finishing
My best friend is good at ________.
#51400
A
sing
B
sings
C
singing
D
sang
This is a new CD ______“Best Friend”.
#50555
A
called
B
calls
C
calling
D
is called