5000 câu trắc nghiệm Tiếng Anh 9 có đáp án - Phần 53

They didn't thank us for the meal before they left____ I thought was very rude of them.

14/20

They didn't thank us for the meal before they left____ I thought was very rude of them.

this

which

it

that

Giải thích

Chọn đáp án B