1. 2. 3. 4. 5.
6. 7. 8. 9. 10.

【解析】：
这是一道英语选词填空题，考查学生对词汇的理解、词性变化以及在语境中的运用能力。解题的关键在于先理解每个备选单词或短语的含义，再结合上下文的语境，判断所需单词的词性和形式，最后进行填空。
1. “received an official...”这里需要一个名词，“invite”的名词形式“invitation”符合语境，表示收到官方邀请。
2. “be bad at...”后接动词 -ing 形式，“climb trees”表示爬树，符合文意。
3. “...were read more than 100 million times a day”这里需要一个名词作主语，“post”的名词复数形式“posts”表示帖子，符合语境。
4. “Tan...in 1972”这里需要一个动词作谓语，“be born”表示出生，符合文意。
5. “be responsible for...”后接动词 -ing 形式，“care for”表示照顾，这里用其 -ing 形式“caring for”，符合语境。
6. “become...”这里需要一个名词，“parent”的复数形式“parents”表示父母，符合文意。
7. 这里需要一个动词不定式表示目的，“to check”表示去检查，符合语境。
8. 这里需要一个副词修饰动词“cleans”，“quick”的副词形式“quickly”表示快速地，符合文意。
9. “physical...”这里需要一个名词，“condition”表示状况，符合语境。
10. “need...attention”这里需要一个形容词修饰名词“attention”，“much”的比较级“more”表示更多的，符合文意。
【答案】：
1. invitation
2. climbing
3. posts
4. was born
5. caring for
6. parents
7. to check
8. quickly
9. conditions
10. more

|New stars on social media—capybaras| |
|Introduction|People used to 1 capybaras as a kind of pig, but now we know they are the largest rodents on the earth.|
|2|Capybaras look 3 to giant guinea pigs, which are their closest relatives.Covered with reddish-brown fur, the male capybaras are usually not as 4 as the female ones.|
|Living conditions|You can most likely 5 them in comfortable places with lots of water.They live mainly on grass,while eating their own poop is of some 6.|
|Abilities|Capybaras are good at 7 and they like chatting.They 8 in their own way,which is like a capybara language.|
|Personalities|They are friendly,calm,and care 9 about what goes on around them.They will take action when they are 10 of a risk.|

1. consider
2. Appearance
3. similar
4. heavy
5. find
6. help
7. swimming
8. communicate
9. little
10. aware