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He helped me a lot with my English learning,       was very kind of him.

My neighbors used to give a hand in time of trouble,        was very kind of them.

The growing speed of a plant is influenced by a number of factors, _______ are beyond our control.

I have bought two ball pens ,______ writes well.

The average rainfall in Ningxia is small, _____ makes the climate here is drier ______
with other cities in China.

Jinging,_____lies in the southeast of Shandong Province, "is a beautiful city ____live about 8 million people．

I have many foreign friends,         some are businessmen.

_______ is reported in the newspapers, the war in Libya has come to an end.

The radio club in our school, _______ used to be poorly run, is now very popular among students.

Children who are not active or _______ diet is rich in fat will put on weight easily.