TOEIC Grammar - Choose the right word

ScottsEnglishScottsEnglish Administrator Posts: 1,296 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

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

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