Trains with the first letter D or Z can run __________ a speed of more than 200 kilometers an hour when it travels __________ the desert.
---This is my book.---_____________ It has my name on it.
第二部分:英语知识运用(共两节,满分45分)第一节、单项选择(共15小题,每小题1分,满分15分)Chinese Vice-Premier called on Thursday for _____ all-out effort to ensure _____ food and drug safety.
These surveys indicate that many crimes go _____ by the police, mainly because not allvictims report them.
The wealth of a country should be measured _____ the wealth and happiness of its people as well as the material goods it can produce.
As the saying goes, one is never too old to learn. After he _____, he will devote himself to gardening.