$\color{#1c1c1c}{\text{I}}$$\color{#363636}{\text{t}}$$\color{#4f4f4f} {\text{R}}$$\color{#696969}{\text{Y}}$$\color{#828282} {\text{U}}$$\color{#9c9c9c}{\text{U}}$$\color{#b5b5b5} {\text{2}}$$\color{#cfcfcf}{\text{1}}$

`2``5`. C. take → "So, you take about 4 hours traveling there by car."
"Take" được dùng khi nói về thời gian cần để làm gì đó.

`2``6`.C. take advantage of → "If your budget is not an issue, you can also take advantage of the hour-long helicopter transfer service."
"Take advantage of" có nghĩa là tận dụng, phù hợp với ngữ cảnh.

`2``7`.A. because → "The ideal season to visit Ha Long Bay is summer because the weather is warm and sunny."
"Because" giải thích lý do.

`2``8`.B. which → "There are many beautiful caves and islands in Ha Long, which you have to take a boat and go sightseeing."
"Which" dùng để thay thế cho danh từ "caves and islands" và nối mệnh đề.

`2``9`.A. must → "Furthermore, the seafood is very fresh and delicious, so you must try it at least once, especially the grilled squid."
 "Must" diễn đạt sự bắt buộc mạnh mẽ hoặc lời khuyên chắc chắn.

`3``0`.D. where → "In short, Ha Long Bay is the ideal place where you can relax after hard working days."
"Where" được dùng để chỉ địa điểm.