It was at the crossroads ________ I met one of my classmates _______ I had not seen for ages.
34.---You may find the key to the maths problem on page 107 . ---Ah, it’s so simple . I wonder why I___________of that .
33.This research attracted wide______ coverage and BBC television’s Tomorrow’s World had a special programme about it last week.
32.---What are you going to do this afternoon? ---I will probably go for a walk______it stays fine.
31.The two ladies are _______ the same age, but there seems to be ten years _______ them.
30. _____in a science competition, the three students were awarded scholarships totaling $ 21, 000.