题目内容
Since then, finding ways to grow more peanuts ______ his life goal.
- A.has been
- B.were
- C.was
- D.have been
A
本题考查时态。since then,since,ever since都和现在完成时式连用。
本题考查时态。since then,since,ever since都和现在完成时式连用。
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