Needs Must When The Devil Drives

[Baki]

Test No. incompl/advan-70 "What the Devil", question 5

The work has to be done as we have no choice. As they say, needs must when the devil ..........

(a) drives
(b) guides
(c) steers
(d) races

Test No. incompl/advan-70 "What the Devil", answer 5

The work has to be done as we have no choice. As they say, needs must when the devil drives.

Correct answer: (a) drives

Your answer was: incorrect
The work has to be done as we have no choice. As they say, needs must when the devil steers.
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How can I prepare a toefl test for three weeks

[Torsten]

Hi Baki,

You want to take the TOEFL test in three weeks. I suggest you read a short article about a scientific subject every day and in addition you should watch CNN every day for at least 30 minutes writing down words and phrases you hear often. Also, you might want to purchase some TOEFL test preparation materials you can use to speed up your training process.
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Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary

[Rich7]

Back to the test, can you explain this?