_______ , I lost heart in English learning, but my teacher often said to me, “Keep on working hard and you’ll succeed_______”

_ his return from America, he got down to hisresearch.

His mother is ill. He is going to ___ her in the hospital.

‘t care if a hunting dog smells _______, but wereally don’t want him to smell _______.

We all greatly ___ your cooperation in the building of the power station. [ ]