Doris tiptoed up the stairs because she didn't want to wake anyone up
Doris tiptoed up the stairs because she didn't want to wake anyone up.
=> To __________________________________________________.
Đáp án: To avoid waking anyone up, Doris tiptoed up the stairs.
Giải thích: avoid + N/Ving: tránh làm gì
Dịch: Để tránh đánh thức mọi người dậy, Doris rón rén lên cầu thang.