137. --- Why are most of us unable to study English well, Mr. Li?--- You ______. But you _____ too little attention to it.
After the long journey ,the three of them went back home,______.
I wonder if your brother will go to the party. If he does, so ______mine.
.All the students were listening carefully, with their eyes _____on the teacher.
-----______you received the news ?------Last night .
My parents have promised to come to see me before I ____for Africa.