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科目： 來源：0101 期末題 題型：單選題

—  Have you received any phone calls from your sister?
— Not yet, but we ______ to get in touch with her ever since she left us.

[     ]

A. have tried
B. tried
C. are trying
D. have been trying

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科目： 來源：云南省期末題 題型：單選題

— I wonder if you can go shopping with me together.
— Sorry. I _____ a letter all the morning and haven't finished it yet.

[     ]

A. am writing
B. was writing
C. have written
D. have been writing

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科目： 來源：0101 期中題 題型：單選題

I ____ to reach the manager for the last two hours but the line is always busy.

[     ]

A. tired
B. have tired
C. had tired
D. have been trying

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科目： 來源：北京高考真題 題型：單選題

Now that she is out of a job, Lucy _____ going back to school, but she hasn't decided yet.
[     ]
A. had considered
B. has been considering
C. considered
D. is going to consider

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科目： 來源：河南省模擬題 題型：單選題

We ____ hard together to achieve our common goal these years-to build a cleaner, safer and healthier world.
[     ]
A. have been working
B. are working
C. work
D. have worked

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科目： 來源：0108 模擬題 題型：單選題

— May! How is your plan? I heard you started it last Sunday.
— Oh! I _____ for it, but I haven't decided where to start it.
[      ]
A. have prepared
B. had prepared
C. have been preparing
D. was preparing

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科目： 來源：遼寧省高考真題 題型：單選題

Joseph _____ to evening classes since last month, but he still can't say "What's your name?" in Russian.

[     ]

A. has been going
B. went
C. goes
D. has gone

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科目： 來源：0118 期末題 題型：單選題

— I have got a headache.
— No wonder. You ______ in front of that computer too long.

[     ]

A. work
B. are working
C. worked
D. have been working

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科目： 來源：0110 期中題 題型：單選題

— Why do you want to work for our company?
— This is the job that I _____ for.

[     ]

A. looked
B. am to look
C. had looked
D. have been looking

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科目： 來源：0110 期中題 題型：單選題

— Bob! How is your project? I heard you started it last Friday, right?
— Oh! I_____ for it. But I haven't decided when to do it.

[     ]

A. have prepared
B. had prepared
C. have been preparing
D. was preparing

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