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Mark the letter A, B, C, D on your answer sheet to indicate the answer to each of the following questions.
When ________ is not known.
- A. it was invented the wheel
- B. was the wheel invented
- C. the invention of the wheel
- D. the wheel was invented
trả lời câu hỏi trước khi xem đáp án bên dướiQUẢNG CÁOCâu 1 Đáp án đúng: D
Đáp án đúng là D.
Động từ chính trong câu này là "is". Ta có cấu trúc "when + S+ V" cũng được coi là mệnh đề danh ngữ, có thể đứng đầu câu làm chủ ngữ, và động từ theo sau ở dạng số ít.
CÂU HỎI KHÁC VỀ MỆNH ĐỀ VÀ CÂU
- Nowadays children would prefer history _______in more practical ways
- After more than 1,500 years, Athens__________ for the site of the first modern Olympics
- Dragonflies feed on a large variety of insects __________ catch in flight
- Billie Holiday, _________ unique singing style made her famous, was also known as Lady Day
- Apart from Pluto, the outer planets _______ the inner planets and are made mainly of lighter materials such as hydrogen and helium
- I passed the test. I __________it without your help
- Nancy can speak French ________ than Jimmy
- She made a list of what to do
- _____ at the Isthmus of Panama, so animals were able to migrate between North and South Ameria
- _____in 1937, the Golden Gate Bridge spans the channel at the entrance in San Francisco Bay
