Your suggestion on how to improve English writing ability is too general. Could you make it more________?
It suddenly ________ me how we could improve the situation.
I thought he would offer to pick me up. _______, he even refused me when I asked him to do so.
Li Ming is a student who is easy _____ though he has some trouble _____ his lessons.
It is surprising that such a young boy can swim ______ the river ______ 100 meters wide.
His English is improving _______, which makes both his parents and his teacher happy.