1. He kept his head _____ water when he began to learn swimming, but he raised his
head now and then
A. over B. below C. above D. up
2. Another grand bridge will be built _____ the Pearl River in our city.
A. along B. up C. on D. across
3. I'll leave Beijing for Guangzhou ____ a week, while my brother will leave
Guangzhou for Beijing ____ our National Day.
A. in, in B. after, in C. after, after D. in, after
4. The huge picture looks more beautiful _____ the blue sky.
A. against B. to C. over D. under
5. The climate here doesn't agree _____ her.
A. to B. on C. with D. at
6. The voyages of travellers before the 17th century show that they were not ________ the sea even though they