1 . ________ (replace) meat actually, researchers need to increase the rice's protein content significantly. (所给词的适当形式填空)

2 . Earthen houses are made of earth, stone, bamboo and wood, all readily available materials which are used ________ (form) walls up to 6 feet thick. (所给词的适当形式填空)

3 . ________ (strengthen) the connection with young people, the event included a number of public promotional activities on social media, ________ (invite) twenty­nine tea professionals from around the world to have thirty­six hours of uninterrupted live broadcasts. (所给词的适当形式填空)

6 . The route was firstly created by an envoy called Zhang Qian assigned by the king of Han Dynasty to deliver gifts that was mainly silk for those local loads in west China area ________ (hold) their loyalty. （所给词的适当形式填空）

7 . He went out to the dog and set it up, and the dog quickly went inside to ________________________ (躲雨). （根据汉语提示完成句子）

10 . It’ll take me about an hour __________________ (完成这个作业). （根据汉语提示补全句子）