Choose the best answer: 

When_____ in international trade, letters of credit are convenient.

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• Choose the best answer: 

   I believe there is somebody_____ on the door.

• Choose the best answer: 

  Tom has just got a new job. He_____ be very pleased.

• Choose the best answer: 

  They have plenty of time, so they need not_____

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• Choose the best answer: 

  The clients demanded that the doctor’s office_____ earlier.

• Choose the best answer: 

  I suggest that the doctor_____ up his mind without delay.

• Choose the best answer: 

  “You’ve been redecorating your house”, “Yes, I’m thinking _______ this room white”.

• Choose the best answer: 

  Bill came to work at the University thirty years__________

• Choose the best answer: 

  The spacemen felt as if he ______ in a paradise.

• Choose the best answer: 

  “Did you hear the phone ring last night?”.

            “I didn’t hear anything, I was_____ that I didn’t wake up”.

• Choose the best answer: 

  The Chicago bus is parked at __________

•  Choose correct answer A, B, C or D to complete the sentence. My mother told me she _______ very tired since she came back from a visit to our grandparents

• Choose the best answer: 

  I often avoid _______ to parties.

• Choose the best answer: 

  The number of women_____ increased.

•  Could you turn the oven______if you’re going in the kitchen?

• Choose the best answer: 

  By the time I go to bed tonight, I _____ my work for the day.

• Choose the best answer: 

  I wish my wife_____ better now.

• Choose the best answer: 

  Since_____ his new business, Bob has been working 16 hours a day.

• Choose the word or phrase that best completes each unfinished sentence below or substitutes for the underlined word or phrase.

  You can’t watch the television - it’s broken.

• _____ is a tall plant with big yellow seeds that

• Many companies have computers at work. In addition, most universities  __________ day and night courses in Computer Science. A. have       B. has        C. had        D. having