题目内容：
Directions: choose the following transitional expressions and put them in the blanks in the paragraph.in addition to also again however
because and finally thus<
Voice and text chat，__(1)___instant messaging，are quickly becoming preferred ways of communicating with others online．For language learners，these forms of communication allow users to share ideas about themselves and the world in almost real time, __(2)____students can establish friendships with people from around the globe，and ___(3)____, it can be an easy way to learn languages and world cultures．
___(4)___ care and consideration should be given when finding friends on the Internet__(5)___ you really don 't know who the person is at the other end．Thus，always use anickname when chatting online and never give out personal information including your age，where you live，and the name of the school where you attend．___(6)___，be careful about meeting online acquaintances in person，and if you do so，make sure it is in a public place and go with a friend or family member. ___(7)___, contact local authorities if you feel you are indanger．___(8)____, chatting with others can be a fun and educational actMty if you use care when doing so
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