The development of ultrasound has made ______ early diagnosis of some fatal diseases. (超声波的出现使许多致命疾病的早期诊断成为可能。)
A. it possible
B. possible
C. it is
D. it
该题的正确答案应为B,因为句子采用了倒装形式,原结构为:
The development of ultrasound has made [early diagnosis of some fatal diseases] possible.
宾语 补足语
3) 记住以下短语:
to takeas(把当作)
to think ofas(把看作)
to regardas(把看作)
to refer toas(把叫作)
关于五个基本句型,重点要掌握每个句型的出题点,举一反三。
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