If you heat ice, it __________.
If you heat ice, it melts.
While I __________ (sleep), my mom called me.
While I was sleeping, my mom called me.
What were you doing at 8 p.m. last night?
I was...
I __________ TV at 8 p.m. yesterday. (watch)
I was watching TV at 8 p.m. yesterday.
If it rains tomorrow, I __________ (stay) at home.
If it rains tomorrow, I will stay at home.
While we __________ (play) football, it started to rain.
While we were playing football, it started to rain.
Was your mother cooking yesterday evening?
Yes, she was. / No, she wasn't.
They __________ in the classroom. (not / study)
They weren't studying in the classroom.
If I were rich, I __________ (buy) a big house.
If I were rich, I would buy a big house.
When she broke the glass, she __________ (clean) the table.
When she broke the glass, she was cleaning the table.
Were your friends studying at 9 o’clock?
Yes, they were. / No, they weren't.
__________ he __________ a book last night? (read)
Is he reading a book last night?
If people don’t water plants, they __________ (die).
If people don’t water plants, they die.
While they __________ (walk), they saw a dog.
While they were walking, they saw a dog.
What was your teacher doing this morning?
He/she was...
__________ you __________ TV at 7 p.m.? (watch)
Are you watching TV at 7 p.m.?
If she studies hard, she __________ (pass) the exam.
If she studies hard, she will pass the exam.
When the lights __________ (go) out, I was watching TV.
When the lights went out, I was watching TV.
Were you sleeping at midnight?
Yes, I was. / No, I wasn't.
We __________ football in the park. (play)
We are playing football in the park.