2 . When she is put in a situation _________ she has to remark on others, she always changes the topic.

3 . Don’t read such books _________ you can’t understand with great effort.

4 . 直到看到这封信，他才意识到自己的错误。
Not until he saw the letter   ___________   ___________aware of his mistake.

5 . 不要让婴儿暴露在强烈的阳光下。这对他们的皮肤有害。
Do not   ___________ babies   ___________   strong sunlight. It's harmful to their skin.

6 . 不要在动物身上试验这种药。
Don't ___________ the drug ___________ on animals.

7 . 我不想推卸责任，但正是他的失误造成了这么大的损失。
I hate to put the blame on others, but   ___________   was his fault   ___________ caused such a great loss.

8 . We must find out ________Karl is coming, so we can book a room for him. （用适当的词填空）

9 . 也许被你评价为“很好吃”的菜肴会在你每次到访时都出现在餐桌上。
Perhaps the meal you said was "delicious" will be served ________________.

10 . Later, man began to settle in the places ___________ the food and water were abundant. (用适当的词填空)