tired, _____ they continued working. A. Though, / B. Although, but C. Because, so 4 ( )23 .I told him the good news _____ he came back yesterday. A. since B. while C. before D. as soon as ( )24 ._____ he is ill, _____ he didn ’t go to school. A. Because; so B. Because; / C. Although; / D. Although; but ( )25. Tom will call me as soon as he ___ Shanghai. A. arrives B. will reach C. arrives in D. get to ( )26. Tom___ China for 3 years. A. has been B. has been in C. has been to D. has been a ( )27. I ___ him since I began to live in the city. A. know B. have known C. knew D. will know ( )28. I won't believe you___ I have seen it with my own eyes. A. before B. until C. after D. when ( )29. He ___ back until the work ___ done. A. isn't; will be B. isn't; is C. won't be; will be D. won't be; is
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