by The children made every effort to please their parents.
A. The children made little effort to please their parents.
B. The children tried their best to please their parents.
C. The parents were pleased with their children’s effort.
D. The children made no attempt to please their parents.
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Đáp án: B
Giải thích: Những đứa trẻ đã cố gắng hết sức để làm hài lòng cha mẹ.
