题目内容
During the period of recent terrorist activities, people _____ not to touch an unattended bag.
| A.had always been warned | B.were always being warned |
| C.are always warning | D.always warned |
B
解析
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题目内容
During the period of recent terrorist activities, people _____ not to touch an unattended bag.
| A.had always been warned | B.were always being warned |
| C.are always warning | D.always warned |
B
解析