Времена группы Perfect Continuous
1. You look tired. What ... you ... all day?
a. have been doing
b. have do
c. was doing

2. We ... there since 1967, you know.
a. had stayed
b. had been staying
c. was stay

3. She was no stranger to him. They ... to each other a few days before.
a. was introducing
b. have introduce
c. had been introduced

4. How long ... Gerry?
a. you knew
b. have you been know
c. have you known

5. I ... never ... in Washington before. How expensive hotels are!
a. have been staying
b. had stayed
c. have stayed

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