TOEIC Grammar - Choose the right word

ScottsEnglishScottsEnglish Administrator Posts: 1,301 admin ✭✭✭✭✭✭✭
in TOEIC Test

Choose the right word for the following sentence.

1. Some telephone ___________________________ will not work while we are upgrading the system.

A. extensions
B. extended
C. extends
D. extending

Spoiler

Some telephone extensions will not work while we are upgrading the system.

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