My father wants to help me with the assignments.He doesn't have time. A. If my father had had time,he could help me with the assignments. B. Provided my father has time,he cannot help me with (Miễn phí)

He was tired this morning.He stayed up late vĩ đại watch a football match last night.

A. He wouldn't be tired this morning if he had stayed up late vĩ đại watch a football match last night.

B. He wouldn't have been tired this morning if he had not stayed up late vĩ đại watch a football match last night.

C. If he didn't stay up late vĩ đại watch a football match last night,he wouldn't be tired this morning

D. He would have been tired this morning if he had stayed up late vĩ đại watch a football match last night.

John cannot see off his sister at the airport.He has been seriously ill.

A. John’s sister wishes he hadn’t been seriously ill sánh that he couldn’t see her off at the airport.

B. As long as John could see his sister off at the airport,he couldn’t be seriously ill.

C. If John hasn’t been seriously ill,he can see off her sister at the airport.

D. If John were not seriously ,he could see off his sister at the airport.

She is busy with work.She cannot attend the meeting.

A. If she weren't busy with work,she could attend the meeting.

B. Provided that she is busy with work,she cannot attend the meeting.

C. If only she were here,she could attend the meeting.

D. If she is busy with work,she can't attend the meeting.

Hoa doesn’t come vĩ đại class today.She contracts a serious illness

A. If Hoa didn’t contract a serious illness,she would come vĩ đại class today.

B. In case Hoa didn’t contract a serious illness,she wouldn’t come vĩ đại class today.

C. If Hoa contracted a serious illness,she won’t come vĩ đại class today.

D. If Hoa contracted a serious illness,she would come vĩ đại class today.

She doesn’t have a xế hộp.She can’t drive vĩ đại work.

A. Provided that she has a xế hộp,she can drive vĩ đại work.

B. If she had a xế hộp,she could drive vĩ đại work.

C. If she has a xế hộp,she could drive vĩ đại work.

D. as if she had a xế hộp,she can drive vĩ đại work.

My son really hates Math.Its complicated formulas are the reason.

A. If it were not for the complicated formulas,my son would lượt thích Math.

B. Unless Math has complicated formulas,my brother will hate it.

C. Since my son really hates Math,its formulas are complicated.

D. Math’s formulas would be complicated if my son didn’t hate it