It’s hard to concentrate when you are tired.

A. I wish I had missed your birthday party.

B. I wish I didn’t miss your birthday party.

C. I wish I missed your birthday party.

D. I wish I had attended your birthday party.

A. The bag was too heavy for her to carry it upstairs.

B. The bag was so heavy for her to carry upstairs.

C. The bag was heavy enough for her to carry upstairs.

D. The bag was too heavy for her to carry upstairs.

A. My father didn’t smoke from 3 years.

B. My father stopped smoking 3 years ago.

C. My father stopped to smoke for three years.

D. My father stopped to smoke 3 years ago.

A. Tom asked Mary if she phoned him yesterday.

B. Tom asked Mary that she had phoned him the day Before.

C. Tom asked Mary if she had phoned him the previous day.

D. Tom asked Mary if he had phoned her the day Before.

A. If we book the tickets in advance, we won’t have to wait.

B. We can avoid waiting even though we book the tickets in advance.

C. We can wait because we book the tickets in advance.

D. We can avoid waiting so as to book the tickets in advance.

A. If Larry hadn’t had enough money, she wouldn’t have bought the shirt.

B. If Larry had had enough money, she would have bought the shirt.

C. If Larry had had enough money, she would Buy the shirt.

D. If Larry had enough money, she would have Bought the shirt.