“中国中央电视台”的英文缩写是

Tim sat under a tree and seeing his friend, _____________ up in no time[ ]

Liu Yan is good at math. He always writes __________ in the test.

Sam can sing English songs _________, but Ican’t.

All the scientific evidence ________ that increasing use of chemicals in farming ________ damaging our health.(2012·湖南)