________ as much money as Bill Gates of Microsoft, I would retire. A. If I had B. If I have C. Unless I had D. If I had had

________ you want to go out during a lecture, what should you do? A. As B. If C. Though D. When

If you won the lottery, ________? A. what will you do B. what had you done C. what would you do D. what did you do

If it ________ tomorrow, I will not have to water the plants. A. will rain B. is raining C. would rain D. rains

________ more carefully, he would not have had the accident yesterday.

________ he arrives soon, we will have to start the conference without him. A. Suppose B. Provided C. Unless D. If

________ here, he would help us with these troubles. A. Were our father B. If our father had been C. Was our father D. Unless our father were

If he ________ more time, he ________ decorating the baby’s room before she was born. A. has / will have finished B. had / would finish C. had had / would have finished D. had had / would finish

If John ________ 10 years younger, he ________ for the Job. A. is / will apply B. was / has applied C. had been / will have applied D. were / would apply

________ people had not cut so many trees. A. If B. If only C. Unless D. Even if

You will not be allowed to attend the club meeting ________ you are a member. A. unless B. if C. providing that D. supposed that

If she ________ me, tell her to leave a message. A. calls B. will call C. called D. would call