10. A few years ago, Raymond thought phone calls to a cable company ________ by a cable company employee.
(A) was answered
(B) was to answer
(C) were answered
(D)were to answer

A few years ago, Raymond thought phone calls to a cable company ________ by a cable company employee.
幾年前，Raymond 以為打到有線電視公司的電話是由他們的員工________的。

這是一個 過去式的被動語態。

分析結構：

• 主詞：phone calls（複數）

• 被動語態需要用：be動詞 + 過去分詞

• 因為句子是過去時，且主詞是複數，所以要用：

  • were answered

各選項解析：

• (A) was answered ❌ → 「was」是單數動詞，但主詞是「phone calls」（複數）。

• (B) was to answer ❌ → 結構錯誤，這是主動語態，而且語意不通。

• (C) were answered ✅ → 正確的過去式被動語態，主詞複數，符合文法和語意。

• (D) were to answer ❌ → 這是主動語態（「被要求去接電話」），語意不符。

正確句子：

A few years ago, Raymond thought phone calls to a cable company were answered by a cable company employee.
（幾年前，Raymond 以為打給有線電視公司的電話是由該公司員工接聽的。）