Từ vựng cần thiết | Bài 1

INSTRUCTIONS:

Number of questions:

Time limit: No

Earned points: Yes (if you’re logged in). You will earn 8 points to your balance if you PASS   the quiz (answering at least 80% of the questions correctly). You will earn another 2 points if you COMPLETE   the quiz (answering 100% questions correctly).

Have fun!