2. 职称英语
  3. These students won’t go unless their instructor ______ soon.A、comesB、has comeC

These students won’t go unless their instructor ______ soon.A、comesB、has comeC

游客2023-10-06  66
问题 These students won’t go unless their instructor ______ soon.
选项 A、comes
B、has come
C、came
D、will come
答案 A
解析 本题考查的是时态的用法。英语中，在含有时间或条件从句的主从复合句中，如果主从句的动作都在将来发生，那么只在主句用一般将来时(过去将来时)，从句中用一般现在时(一般过去时)。如：I’ll tell him the good news as soon as he comes./ we won’t start if it rains tomorrow.
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