🡪 Mấu chốt: Lùi thì trong câu tường thuật.
- The traveler asked if people had built (build) the Taj Mahal as a symbol of love in the past.
🡪 "in the past" 🡪QKĐ 🡪 QKHT
- She wondered if ancient people were carving (carve) Petra entirely out of rock at that time.
🡪 "at that time" 🡪 QKTD
- He wondered if the Great Pyramid of Giza remained (remain) the oldest wonder of the ancient world.
🡪 HTĐ 🡪 QKĐ
- The student asked if Christ the Redeemer had been standing (stand) as the largest art deco statue for years.
🡪 "for years" 🡪 HTHT 🡪 QKHT
- She asked if the Romans had designed (designed) the Colosseum to hold 50,000 spectators.
🡪 QKĐ 🡪 QKHT
- The tourist asked if people saw (see) the Northern Lights from the Arctic Circle.
🡪 HTĐ 🡪 QKĐ
- He wondered if the Leaning Tower of Pisa would tilt (tilt) more in the future.
🡪 "in the future" 🡪 TLĐ 🡪 would + Vo
- The guide asked if astronauts had ever seen (ever see) the Great Barrier Reef from space.
🡪 "ever" 🡪 HTHT 🡪 QKHT
- He wondered if France had given (give) the Statue of Liberty to the United States in the 19th century.
🡪 QKĐ 🡪 HTHT
- She asked if locals still called (call) Victoria Falls "The Smoke That Thunders."
🡪 HTĐ 🡪 QKĐ