—We'd better hurry; we'll be late.— __________. Do you really want to listen to the boring lecture?
Bill’s fully ____ from his heart disease. He is very happy.
While____the dog,you should take care not to____.Otherwise,it may be dangerous to strangers.
Tom ____ skating, so he spends all his spare time on it.
Having retired(退休), he ______ the club for old men and plays chess every day there.
Neither of them knows the difference ________ the two and neither can we tell one ________the other.