A. He told her that he will help her when she needs me.

B. He said that he would help you when she needed him.

C. He promised that he would help her when she needed him.

D. He asked her whether she would help him when he needed her.

A. If he could swim, he would have more time every day.

B. If he had more time, he would go swimming every day.

C. He says that he has more time to go swimming every day.

D. He is pleased that he has more time to go swimming every day.

A. After he turned off all the devices to save electricity, he left there.

B. He left the room without turning off all the devices to save electricity.

C. He left the room although he did not turn off all the devices to save electricity.

D. Because he was in the right room, he turned off all the devices to save electricity.

A. Emma asked that she could have a day off tomorrow.

B. Emma asked if she can have a day off tomorrow.

C. Emma asked that if she could have a day off tomorrow.

D. Emma asked if she could have a day off the next day.

A. If there was no Covid-19 pandemic, we will have to cancel the trip to the mountain.

B. If there is no Covid-19 pandemic, we would not have to cancel the trip to the mountain.

C. If there were no Covid-19 pandemic, we would not have to cancel the trip to the mountain.

D. If there were no Covid-19 pandemic, we will not have to cancel the trip to the mountain.

A. English vocabulary should be learnt through reading.

B. English vocabulary have to be learn through reading.

C. English vocabulary should be learning through reading.

D. English vocabulary had to learnt through reading.

A. Tom asked Mark what time he came home every day.

B. Tom asked Mark what time he come home every day.

C. Tom asked Mark what time did he come home every day.

D. Tom said to Mark what time does he come home every day.