【推荐1】Sleeping ________ (strength) knowledge that is lost during the day and prevents it from being lost further. (所给词的适当形式填空)

【推荐2】Does this friendship ________ (strength) me or weaken me? (所给词的适当形式填空)

【推荐3】They focused on ________(strengthen) the cooperation of the two countries. (所给词的适当形式填空)

【推荐1】阅读下列各句，在空白处填入1个适当单词或括号内单词的正确形式。
1. She had failed for twice in the driving test, and finally made _____ on her third try.
2. With the arrival of winter vacation, students are actively applying _____ volunteers.
3. People can’t wait ______ (know) the program for the 2020 Spring Festival Gala (春晚).
4. The little girl wrote a thank-you letter to the firefighter by ______ she was rescued.
5. The doctor recommended that we_______ (take) exercise regularly to keep fit.
6. Eye doctors recommend that the child’s first eye exam _______ at the age of six months old.

【推荐2】He threw a stone ________(scare) the dog away. (所给词的适当形式填空)

【推荐3】________ (host) the 2008 Olympic Games, Beijing rebuilt the existing sports venues and built many new ones to meet the standards of the Olympic Games. （所给词的适当形式填空）

【推荐1】My secretary left us a month ago and we expect a more capable person to _______ him, so we are advertising for a _______. (replace) (所给词的适当形式填空)

【推荐2】It is great fun___________（take）photos of beautiful scenery when you are traveling. （用单词的适当形式完成句子）

【推荐3】I hope our teachers can recommend more interesting books ________us and give us more free time to read them. (用适当的词填空)