增加：在缺词处加一个漏子符号（∧）并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。 

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1）每处错误及其修改均仅限一词； 

2）只允许修改10处，多者（从第11处起）不计分。

    Time flies! This is a third year that I have been in this school. In the past two and a half years, our school had organized many activities. What impressed me best was an activity called “Learning to Farm”. In an autumn afternoon, we were sent to a farm which we learned to plant potatoes. Having been in the city for so a long time, we were so happy to go to the countryside. After divided into three groups, we started to work. Some students cut potatoes into pieces; some dug holes, and the others put the pieces of potatoes into the hole, put the earth back and push them down hard. We continued doing that until all the work was done. Although we were exhausted, but we felt fulfilled on our way back home.

广场舞（俗称坝坝舞）风靡各地，在广场上，跳舞的人在音箱中传出的音乐声中翩翩起舞，对此，以下说法中不正确的是（　　）

①艰苦创业    ②全心全意为人民服务    ③英勇无畏抗击侵略    ④爱国主义

下列各句中划线成语的使用，全部正确的一项是（    ）

①小说虽然是以家庭生活为题材的，却多侧面、多视角地展现出那个时代光怪陆离的社会生活画卷。

②王勃在滕王阁盛会上，当众挥笔而书，率尔成章，于是《滕王阁序》喷薄而出，“落霞与孤鹜齐飞，秋水共长天一色”熠熠生辉。

③在2015年央视网络春晚上王铮亮演唱了《最远的距离》，他那温暖醇厚又不失清亮的嗓音，让现场每位观众耳濡目染，沉浸其中，让每一个归心似箭的人热泪盈眶。

④家具市场产品鱼目混珠的现象早已屡见不鲜，网购平台上售卖仿冒名品家具的卖家也越来越多，有关部门有必要展开一轮彻查严打的行动了。

⑤随着十一假期的临近，安徽黄山将迎来旅游高峰，有关人士说，黄山市该旅游景点严阵以待，已经做好了各项准备工作。

⑥最近爆红的“欢乐喜剧人”的确是个好节目，整个策划团队、舞美灯光、流程形式、评委表现都可圈可点。

$309\times 5+55=$ ____   $240÷6-13=$ ____