Choose the correct answer.

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She ____ the door when she heard the phone ring.
1. had just locked
2. is locking
3. locks
They ____ for hours when they stopped to have lunch.
1. were working
2. had been working
3. worked
I ____ for two hours by 12 o’clock.
1. will have been reading
2. will have read
3. am reading
He ____ the letter as soon as it arrived.
1. had opened
2. opened
3. had been opening
Sarah ____ dinner when she burnt her finger.
1. was cooking
2. cooks
3. is cooking
Philip ____ his dinner by the time we get home.
1. had been having
2. will have had
3. will have
The people ____ for an hour before the rescuers came.
1. had been waiting
2. waited
3. are waiting
Emily ____ her lunch already, even though it’s only 10 o’clock.
1. has eaten
2. was eating
3. ate
Tom ____ his homework since he got home from school.
1. has been doing
2. is doing
3. does
My parents ____ to bed by the time I got home.
1. are going
2. had been going
3. had gone