Mr. Wu___this math problem____him many times, but he still doesn’t understand it.
#38768
A
explains ; to
B
has explained ; for
C
has explained ; to
D
explained ; with
推荐题目
—Where is Jim? —He            home since last week.
#37437
A
has left
B
has gone away from
C
left
D
has been away from
He     a bike in the street when he was hit by a car.
#41939
A
was riding
B
is riding
C
rode
D
rides
The boy ________have ________ brothers ________ sisters.
#37203
A
don’t, any, and
B
doesn’t, any, or
C
don’t, some, or
D
doesn’t, any, and
When I______ the cinema, the film ______.
#37946
A
arrived at; began
B
got; began
C
got to; had begun
D
had got; had begun