21. They have built a new bridge across the river. A. A new bridge across the river have been built. B. A new bridge has built across the river. C. A bridge has been built new across the river. D. A new bridge has been built across the river. 22. They will install a network of wind turbines to generate electricity. A. A network of wind turbines will be installing to generate electricity. B. A network of wind turbines will installed to generate electricity. C. A network of wind turbines will be installed to generate electricity. D. A network of wind turbines will have installed to generate electricity. 23. The novel written by Nam Cao is very famous. A. The novel which is written by Nam Cao is very famous. B. The novel writing by Nam Cao is very famous. C. The novel to write by Nam Cao is very famous D. The novel which was written by Nam Cao is very famous. 24. It/ report that/ the president/ suffer/ heart attack. A. It reported that the president suffered a heart attack. B. It reported that the president had suffered a heart attack. C. It was reported that the president had suffered a heart attack. D. It was reported that the president suffered a heart attack. 25. The fire has destroyed many houses. A. Many houses have been destroyed by the fire. B. Many houses were destroying by the fire. C. Many houses has been destroyed by the fire. D. Many houses were destroyed by the fire. 26.Billionaire Pham Nhat Vuong founded Vinfast Automobile Company in 2017. A. Vinfast Automobile Company is founded by billionaire Pham Nhat Vuong in 2017. B. Vinfast Automobile Company was founded by billionaire Pham Nhat Vuong in 2017. C. Vinfast Automobile Company were founded by billionaire Pham Nhat Vuong in 2017. D. Vinfast Automobile Company has been founded by billionaire Pham Nhat Vuong in 2017. 27.Somebody will call Mr. Watson tonight. A. Mr. Watson will call somebody tonight. B. Mr. Watson will be call tonight. C. Mr. Watson tonight will call somebody. D. Mr. Watson will be called tonight. 28. The electrician is going to fix our air-conditioner. A. We are going to have our air-conditioner fixed by the electrician. B. We are going to make the electrician fix our air-conditioner. C. We are going to have our air-conditioner to be fixed by the electrician. D. We are going to fix our air-conditioner with the electrician. 29. They built the school in 1990. A. The school was being built in 1990. B. The school was built in 1990. C. The school was building in 1990. D. The school which was built in 1990. 30. No one has been to collect the rubbish this week. A. The rubbish have not been collected this week. B. The rubbish has been collected this week. C. The rubbish has not been collected this week. D. The r