Looking forward to hearing from you

[IgorSandler]

Test No. incompl/advan-31 "Letter Writing (3)", question 10

Finally I look forward to ......... from you and as you will understand I don't want to 'wait' very long.
Yours faithfully,
I.A.M. Hopeful.

(a) hear
(b) hearing
(c) heard
(d) hears

Test No. incompl/advan-31 "Letter Writing (3)", answer 10

Finally I look forward to hearing from you and as you will understand I don't want to 'wait' very long.
Yours faithfully,
I.A.M. Hopeful.

Correct answer: (b) hearing

Your answer was: incorrect
Finally I look forward to hear from you and as you will understand I don't want to 'wait' very long.
Yours faithfully,
I.A.M. Hopeful.
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Why is the correct answer "to hearing" and not "to hear"? Look forward to hearing sounds very strange to me, maybe it's wrong?

IgorSandler

[Alan]

In this construction the following verb is NOT the infinitive but the ing form.
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English as a Second Language
You can read my ESL story Phrasal Verbs/bring

[Torsten]

Hi Igor,

In addition to Alan's explanation you might want to read Looking forward to hearing from you and Common mistake in English: Look forward to hear from you.

Now I really look forward to hearing from you.
Regards,
Torsten
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Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary