Question

Betty shows great interest in this poet now, but she thought it boring ________ she read it．

1. A.
   at the first time
2. B.
   the first time
3. C.
   for the first time
4. D.
   at first

Answer 1

B
考查介词/连词。…she read it是一个完整的句子，不能使用介词短语引导，A、C、D都是介词短语，而the first time可作连词用，引导一个时间状语从句。