【题目】The heavy rain kept beating _________ the windows and we were all very frightened.

【题目】I still remember my happy childhood when my mother ______ me to the farm at weekends.

【题目】He suffered a lot from his foot problem, but______ could stop him from finishing the race.

【题目】If you want to know more about space, please ______ the book A Brief History of Time.

【题目】This kind of food should be______ cool, clean and dry according to the instruction.

【题目】The mark of PE will be increased to 60 points in Maanshan in order to ______ students’ physical quality（身体素质）.

【题目】If there are any letters for me, ______ you send them on to this address?

【题目】Dear Rita, long time no see! Do you know ______ I want to see you again?

【题目】—Why is the bread bad?

【题目】—When did you _________ playing musical instruments as your hobby?