(2013·湖南长沙四校二模)—Is the letter from your mother?—Yes.But she ________the letter herself，because she doesn’t even know one word.

--Honey, stay home before I return. ---I _______, mum. 

The post office is about 1 kilometer __________.

 I ________ have watched that movie---it will give me horrible dreams.

If you spend the spring sneezing, take a look at your plate. Some foods _____ make allergies worse.