Câu 21 :
4. Read again and circle the correct answer.
(Đọc lại bài và khoanh tròn câu trả lời đúng.)
1. Mr. Khanh was __________.
a. a scientist
b. a farmer
c. a tourist
2. Mr. Khanh first found the cave in ________.
a. 2023
b. 2009
c. 1991
3. When Mr. Khanh found the cave he was ________.
a. surprised
b. sad
c. scared
4. The cave is very __________.
a. old
b. big
c. small
5. Inside the cave there is _________.
a. a jungle
b. a farm
c. a museum