4. When he went home last night, his house was in a mess. He thought a burglar _____ into it.
(A) might break
(B) had been broken
(C) was breaking
(D) must have broken

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統計： A(3), B(2), C(0), D(5), E(0) #3298285

詳解 (共 1 筆)

#6406042
正確答案：(D) must have ...
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