1 . 我不能和你外出是因为我必须照顾我生病的爷爷。
________________ I have to care for my sick grandfather.

2 . The bear tore a hole in the fence and put his head in. Elli and I were shocked.
→The bear tore a hole in the fence and put his head in, _______________. (定语从句)
→_______________ the bear tore a hole in the fence and put his head in.(主语从句)

4 . Getting up early also relieves stress and tension because it gives you the time to squeeze in a workout before you get distracted (分神). This is ________ morning people tend to be healthier and happier. (用适当的词填空)

6 . The main feature of the weather of the Grain Rain is ________ it is rainy, and the rainfall increases after the Grain Rain solar term. (用适当的词填空)

7 . The fresh thin air, snow-covered mountains and graceful animals running on the plains are _______we’re here-to observe Tibetan antelopes, which are being hunted, legally, for their valuable fur. (用适当的词填空)

9 . In my case this is ________ happened — my parents turned in to me and my needs and the shyness all but disappeared completely over time. (用适当的词填空)

10 . Sheng said a friend of his, the head of Beijing Tsinghua Chang gung Hospital told him that one of the biggest problems in dealing with COVID-19 was ________healthcare workers treating patients were getting infected themselves. Zheng said he wanted to do something to deal with this situation. (用适当的词填空)