2. The weather is too hot. I _______ some water to drink.
A. have to B. need
C. must D. should
【解析】选B。A、C、D项均为情态动词，后须接动词原形，some water 为名词，故用need。
3. When you ride a bike on the road in England, you should _______ the left side.
A. look at B. go off
C. keep to D. walk
【解析】选C。据题意：当你在英国路上骑车时，你应该沿左边走，A项意为“看”；B项为“走开”；C项为“沿着……走”；D项为“走，散步”。
