137. --- Why are most of us unable to study English well, Mr. Li?--- You ______. But you _____ too little attention to it.
----Have you got the result? ----No, It will be some time ________we know the result.
. Little ______about his own health though he was very ill.
The light will be thrown ______ the cause of cancer by research that is now in progress.
—Why was he unhappy yesterday? —A letter from home ______ an attack of homesickness.
______great progress Jim had made in _______ time!