Liu Ying is my friend. She’s not as good _____ sports as her sister.[ ]

.As reported in the essay by Prof. Brown, it is only in the most difficult circumstances ________ a man’s abilities are fully tested.

Sam can play volleyball well.— So ______. [ ]

Where is my pen? —Oh, sorry, I have taken________ by mistake.

Go to a place _____ the peopleare good-looking , and the heroes can do anything.[ ]