1 . Zhong Wen’ an, chief engineer at the Xichang Satellite Launch Center, said they had completed the most extensive rehearsal before launch, ________is also the final joint rehearsal. (用适当的词填空)

2 . In the future, scientists plan to use sustainable supplies of cells ________can be maintained in the lab. (用适当的词填空)

3 . Northern Kenya is a vast, varied and breathtakingly beautiful landscape________you can find the “Towers of the Savanna” — reticulated (网纹的) giraffes. (用适当的词填空)

4 . The meat filling might consist of chopped pork, beef or chicken ________ has been cooked with a variety of spices. (用适当的词填空)

5 . Additionally, you should not ignore the other person’s body language, which will give you clues as to _________ the conversation is going well or not. (用适当的词填空)

6 . To become an artist or expert in calligraphy, one has to practice word by word and stroke by stroke _________ the spirit of the practice gets into one’s mind. (用适当的词填空)

7 . It has been 2 years _________we hired a cleaning lady and for some reason my husband has become very demanding toward her. (用适当的词填空)

8 . Calligraphy is so abstract and amazing _________ in Chinese culture it is universally regarded as the most inspiring power of a person. (用适当的词填空)

9 . He realized that it was important to do all that he wanted to do without postponing them, _________ it was fixing a friendship that had problems or going on an adventurous vacation. (用适当的词填空)

10 . It was a natural step to turn his skills into an opportunity to make all kinds of toys for his young grandson, and it was not long _________ his son and daughter-­in-­law decided to video Wang’s efforts. (用适当的词填空)