=>

1. Even though the village is small, its traditional crafts are so famous.

-> even though: mặc dù

2. It took us an hour to get to the cave by boat.

-> take/took sb time to V ~ spend time Ving

3. Unless you join us, you won't know how interesting this project is.

-> unless ~ if not

1. ⇒ Even though the village is small, it's traditional crafts are so famous.

Even though = Although = Though = Despite = In spite of: Mặc dù

Cấu trúc: Even though đứng ở đầu câu hoặc giữa hai mệnh đề.

2. It took us half an hour to get to the cave by boat. 

Cấu trúc: It (take) somebody + time + to verb.

Cách dùng: Ai đó dành/mất bao nhiêu thời gian để làm việc gì đó.

3. Unless you join us, you won't know how interesting the project is.

Unless = If not: trừ khi

Cấu trúc: Unless + S + V (simple present), S + will/can/shall + V