He has a hard time the problem.
#42186
A
works out
B
working out
C
work out
D
works out
推荐题目
We __________ 1000 English words since we __________ to learn English.
#41594
A
learned; begin
B
have learning; began
C
have learn; begun
D
have been learning; began
----What did your dad tell you, my baby?----He said the sun _______ in the east.
#38926
A
went up
B
will go up
C
goes up
D
is going up
—Tom, why did you make no reply when I called your name in the street just now?—Sorry, Jim. I to my wife on the phone.
#36884
A
talked
B
am talking
C
was talking
D
had talked