Ⅰ.单句语法填空
1．They had intended (intend) to arrive before ten，but they were trapped in a traffic jam.
2．At the end of the meeting，it was announced that an agreement had been reached (reach)．
3．By the end of last year they had turned (turn) out 1，000 machines.
4．Scarcely had the boy reached school when the bell rang.
5．By the time I got home，they had left (leave) the meeting room.
6．By nine o'clock last night，we had got (get) 200 pictures from the spaceship.
7．It was the first time that he had seen (see) so strange a car.
8．The new bridge had been designed (design) by the end of last month.
9．I found the lecture hard to follow because it had started (start) when I arrived.
10．Mr.Smith died yesterday.He had been (be) a good friend of mine.
