8140÷9≈____

498×81≈____

女性生殖系统中，产生卵细胞的结构和受精的场所分别是（　　）

2018年08月18日至09月02日，第18届亚运会将于印尼雅加达举行。第19届亚运会则将移师杭州举办。据此回答小题。

增加：在缺词处加一个漏字符号（∧），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。

    I'm so exciting that our drama club won the first prize in this competition. Participating in this club help us to learn more about drama, but develop our self-confidence and cultural qualities as well. Besides, thanks for the club, I have known many friends who share the same interest with myself. There we communicate and learn from each other. Before the competition we keep on practicing for long time. Luckily, our efforts were paid off, what is beyond our expectation.

    Finally, I'd like to express my thanks to all of our teachers who directed us, friends who helped us, and partners who worked hardly. Thank you for all your kindness.