100 câu trắc nghiệm Thì quá khứ hoàn thành tiếp diễn (Past Perfect Continuous) có đáp án

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My brother ate all of the cake that our mum (make).

91/100

My brother ate all of the cake that our mum (make).

Had made

Had been making

Made

Were making

Giải thích

Chọn đáp án: A