正在下载：高二英语下册Unit13—14单元测试

1.Around 3 billion years ago, _________ life on the earth began in ___________ deep blue seas. A. the;     B. a; the   C. ; the      D. a; 2.That __________ be Jessie ----- she’s away in Tokyo. A. can’t     B. mustn’t   C. needn’t    D. shan’t ...