104 câu trắc nghiệm Thì quá khứ hoàn thành (Past Perfect) có đáp án
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 After they ________ (finish) lunch, they went out.

26/104

 After they ________ (finish) lunch, they went out.

was finish

has finished

have finished

had finished

Giải thích

Chọn đáp án: D