2 . 我们都竭尽全力不辜负家长的期望。(汉译英)

3 . 请你修改以下的每个句子，每句有1处语言错误，错误涉及一个单词的增加或修改。
增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。
删除：把多余的词用斜线(\)划掉。
修改：在错的词下面划一横线，并在横线下面写出修改后的词。
注意：每处错误及其修改仅限一词。
1. I asked him lend me twenty pounds.
2. Bill works hard than Joe.
3. To they surprise, the precious parcel was full of stones and sand.
4. The instrument is bought by my grandfather many years ago.
5. It was made in Germany in the 1681.

4 . She cycled round the corner, lost _______(she) balance and fell off.(所给词的适当形式填空)

5 . Some scientists were determined to help humans make________ (they) dream to explore space come true. (所给词的适当形式填空)

6 . She had a frog in ________(she) throat. (所给词的适当形式填空)

7 . I turned around and was surprised to find a familiar-looking man in _________thirties.(用适当的词填空)

9 . Ecotourism has ________ (it) origin with the environmental movement of the 1970s. It was not widely accepted as a travel concept until the late 1980s. (所给词的适当形式填空)

10 . 上星期天，我们学校举行了一场五公里越野跑比赛。
Last Sunday, a five-kilometer cross-country running race ________.