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Question 47. If/ you/ try/ best/ learn English/ home/ you/ good/ speak it.
A. If you try your best to learn English at home, you will be good at speaking it.
B. If you try your best learn English at home, you will be good at speaking it.
C. If you tried your best to learn English at home, you will be good at speaking it.
D. If you try your best to learn English at home, you would be good at speaking it.
Question 48. wel now/ faced/ problems/ environment.
A. We are now faced to the problems of environment.
B. We now faced with the problems of the environment.
C. We are now faced with the problems of the environment.
D. We are now faced by the problems of environment.
Question 49. plants/ species/ many/ animals/ bel danger/ extinction.
A. Many species of plants and animals are in danger of extinction.
B. Many species of plants and animals are danger of extinction.
C. Many plants and animals were in danger of species extinction.
D. Species of plants and animals are in many danger of extinction.
Question 50. If / there / be/ no Covid -19 pandemic/we/ not/ have to/ cancel the trip/ the mountain.
A. If there is no Covid -19 pandemic, we would not have to cancel the trip to the mountain.
B. If there were no Covid -19 pandemic, we would not have to cancel the trip to the mountain.
C. If there were no Covid -19 pandemic, we will not have to cancel the trip to the mountain.
D. If there was no Covid -19 pandemic, we will have to cancel the trip to the mountain.