【推荐1】Police have issued a photograph of the ________ (嫌疑犯). (根据汉语提示单词拼写)

【推荐2】John Snow s_________ that the second theory was correct but he needed evidence.

【推荐3】The nursery team switches him every few days with his sister so that while one is being bottle-fed, the other is with mum——she never s__________(怀疑). (根据中英文提示单词拼写)

【推荐1】There has been serious __________ (分歧) between the 2 political parties over the question. （根据汉语提示单词拼写）

【推荐2】There are seven c___________ in the world, of which Asia is the largest. (根据首字母单词拼写)

【推荐3】If headaches only occur at night, a l________ of fresh air and oxygen is often the cause. （根据首字母单词拼写）