单句语法填空
【小题1】(2019·浙江高考)The answer __________ this question is not clear.
【小题2】(2018·浙江学考)One cup of coffee __________ the late afternoon or evening will cause them to stay awake almost all night.
【小题3】(2018·浙江高考) If you are not going to suffer this problem, then I suggest that the next time you go to your mum’s home __________ dinner, get a few cooking tips from her.
【小题4】(2017·浙江学考)You wouldn’t think that a few months of exercise in your teens would be enough __________ the rest of your life.
【小题5】(2019·全国Ⅰ)Modern methods __________ tracking polar bear populations have been employed only since the mid-1980s
【小题6】(2019·全国III)We were first greeted with the barking by a pack __________ dogs, seven to be exact.
【小题7】(2018·全国Ⅰ)The review says it is more effective at lengthening life __________ walking, cycling or swimming.
【小题8】(2018·全国Ⅲ)I was searching __________ these three western lowland gorillas I’d been observing.
【小题9】(2018·全国Ⅱ)Corn uses less water __________ rice and creates less fertilizer(化肥) runoff.