--- Where is your mother?--- She _______ to Sichuan on business. She has ______ there four times recently.
#41943
A
has gone, gone
B
has been, been
C
has gone, been
D
has been, gone
推荐题目
The mobile phone has influenced people’s life a lot since it      .
#39054
A
invents
B
invented
C
is invented
D
was invented
—Why is the classroom so dirty?—Sorry,sir. It       yesterday, We forgot to do it.
#39874
A
doesn’t clean
B
didn’t clean
C
isn’t cleaned
D
wasn’t cleaned
What       the women     under the tree ?
#41969
A
is,doing
B
does,do
C
are,doing
D
are,do