We've been looking for a cheap house but haven't found ________ yet.
_______ many times, he finally understood it.
He was appointed _____ a very important post in the West, where he would improve himself better.
He makes ____ a rule to arrive at office on time, which is to be carried out from next Monday.
Ⅰ、单项填空(共15小题;每小题1分,满分15分)从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。Last week, I went to see the concert of Jay Chow, ____ famous singer I love best, and this is the first time I have seen him in _____ fresh. A. the; / B. the; the C. a; the D. a; /
—How much do I owe you for lunch? —________________. It’s nothing.