下边是认为同学们对于难题“What is an activity that you enjoy doing with your friends and why? Please include specific examples and details in your explanation.”的回应。

There are two reasons why I think so. One reason is that playing sports help us create strong bonds of friendship. It creates many opportunities of cooperation if we have to beat others when play in a group.I don’t like exercising alone. It is really boring if you have to repeat some moves.I am really interested in playing sports with my friends.
*一句是总起句，应当用表起止的连词，如: in the beginning, in the first place,这些;第二句是*一句的表述，因而可以用that is to say, in other words这些来联络这种关联。表层递的关联，可以用moreover。下边大家讨论一下改动后的回答。
As far as I am concerned, I really love playing sports with my friends. There are two reasons why I think so. Actually, one reason is that playing sports helps us create strong bonds of friendship. You know, it creates many opportunities of cooperation if we have to beat others when play in a group. Also, I don’t like exercising alone. Because it is really boring if you have to repeat some moves. For these two reasons, I am really interested in playing sports with my friends.
那样看上去，用上连词之后，全部回答读起來都畅达了很多。
连词收集整理
(1)表挑选关联或对等关系的连词：either…or…, neither…nor, or, as well as…, and, both…and…等
(2)表逻辑关系或对等关系的连词：therefore, so, as a result, as the result of…, because of, due to…,owing to, thanks to等。
(3)表先后顺序的连词：the moment, as soon as, at first, then, later, meanwhyle, at the beginning, in the end, before long, for the firs(tsecond…)time, the minute等。
(4)表转折关系的连词：yet, and yet, but , while, on the contrary, on the other hand, however, at the same time(殊不知)等。
(5)表解释说明的连词：that is, that is to say, in other words, such as, for instance, and so on, etc. and the like等。
(6)表递进关系的连词：not only…but(also), what, s more, what's worse, besides, in addition, worse still, moreover, above all等。
(7)表明汇总的连词：in a word, on the whole, in short, briefly, in brief, to sum up, in all等