Câu hỏi: people warned us not to go out alone.

A. We were warned not going out alone.

B. We were warned not to go out alone by people.

C. We were warned not to go out alone.

D. We weren’t warned to go out alone.

Câu 1: They think that the prisoner escaped by climbing over the wall

A. The prisoner is thought to escape by climbing over the wall.

B. The prisoner is thought escaped by climbing over the wall.

C. The prisoner is thought having escaped by climbing over the wall.

D. The prisoner is thought to have escaped by climbing over the wall.

Câu 2: An electricalfault could have caused the fire.

A. An electrical fault could have been caused by the fire.

B. An electrical fault could have caused the fire.

C. The fire could have been caused by an electrical fault.

D. The fire could have caused an electrical fault.

Câu 3: They say that many people are homeless after the tsunami.

A. They say many people to have been homeless after the tsunami.

B. They say many people to be homeless after the tsunami.

C. Many people are said to be homeless after the tsunami.

Câu 4: People don’t use this road very often.

A. Not very often this road is not used.

B. This road very often is not used.

C. This road is not used very often

D. This road not very often is used.

Câu 5: They are building a new highway around the city.

A. A new highway is being built around the city by them.

B. A new highway around the city is being built.

C. Around the city a new highway is being built.

D. A new highway is being built around the city.

Câu 6: They cancelled all flights because offog.

A. All flights because of fog were cancelled.

B. All flights were cancelled because of fog.

C. All flights were because of fog cancelled.

D. All flights were cancelled by them because of fog.