David feels very proud to be a member of the school volleyball （队）.
用方框内所给词或短语的适当形式完成下列句子．（每词或短语限用一次，有一个为多余选项）
We almost allow get tooth all over
47．Stonehenge， a rock circle in England， is believed to be 5000years old．
48． It's very important for us teenagers to learn how to take care of
49． We're going to do an English course in Britain next week， so we things ready now．
50． Cola and candy are very sweet， and too much sugar is bad for your ．
51． Some children like to buy food from shops outside school， but this ．
say fair keep ask enough happy early
I think it is important for children to learn how to do chores and help their parents with housework．It is not （76） to just get good grades at school．Children these days depend on their parents too much．
They are always （77） "Could you get this for me？"or" Could you help me with that？"Doing chores helps to develop children' independence and teaches them how to look after themselves．It also
helps them to understand the idea of （78） Since they live in one house with their parents，they should know that everyone should do their part in （79） it clean and tidy．Our neighbors' son got into a good college but during his first year，he had no idea how to take care of himself．As a result，he often fell ill and his grades dropped．The （80） kids learn to be independent，the better it is for their future．
I fell off my bike and hurt （oneself） yesterday．
You should pay attention your pronunciation．
At last，the doctors saved the girl's life （successful）．