How long to you think it wil take upon?

[Tilly]

English Language Tests, Intermediate level

ESL/EFL Test #80 "Company Decisions", question 2

How long do you think it will take ......... we'll be in a position to implement the changes to our distribution system?

(a) upon
(b) about
(c) to
(d) before

English Language Tests, Intermediate level

ESL/EFL Test #80 "Company Decisions", answer 2

How long do you think it will take before we'll be in a position to implement the changes to our distribution system?

Correct answer: (d) before
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how long to you think it wil take upon?

Tilly

[Mister Micawber]

.
No. 'Before'.
.
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Native English teacher at Mister Micawber's