I have to work tomorrow morning, so I can’t meet you.
A. If I don’t have to work tomorrow morning, I can meet you.
B. If I didn’t have to work tomorrow morning, I could meet you.
C. I could meet you if I don’t have to work tomorrow morning.
D. I can meet you if I didn’t have to work tomorrow morning.

Random Topics:
Such...that, so ......thatPerfect ModalsSubject Verb Agreement & Subjunctive MoodAdjective & AdverbsHave to / Do not have toPresent Simple & Present Continuous TensesModals of ProbabilityPast Tense and NeutralFuture Tense and ConditionalsSimple Past Tense & Future TenseOther quiz:
Punctuation › ViewWhich sentence uses quotation marks to show a direct quote?
A. A lot of people say “Yolo” these days.
B. A lot of people say Yolo these days.
C. A lot of people say, “Yolo these days.”
Participal Phrases › View
The window pane ______ by Dizkri has not been repaired yet.
A. breaking
B. broken
C. broke
D. was broken
Grammar › ViewA: What is Louis favorite drink?
B: ___ favorite drink is orange juice.
A. My
B. Your
C. His
D. Her
Pronoun › View
If people want to buy new clothes, ___ have to earn money.
A. She
B. He
C. They