—Mary 1ooks down today.What is up?—Well,_________happened between Mary and me is none of your business.
28. Dr. Frank failed many times but he finally _____ to find a successful way to solve the problem.
27.---Where have you been? ---I got caught in traffic, otherwise I _______ here earlier.
26.—May I ask a question after class,sir? —____,but not during my lunch break.
25.The fire spread fast.Luckily the local government had brought it under control___the situation got worse.
24. Finnish President said Finland-China relations had progressed_______ with fruitful co-operation in new and high-tech fields.