What are carrier and boat and aircraft?

[Vocabgirl]

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #706 "Vocabulary Practice: War-related Terms (1)", question 1

An aircraft ......... is a large, marine vessel that has a long, landing strip on board. During war time, planes can land and take-off at sea.

(a) sail
(b) boat
(c) carrier
(d) ocean

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #706 "Vocabulary Practice: War-related Terms (1)", answer 1

An aircraft carrier is a large, marine vessel that has a long, landing strip on board. During war time, planes can land and take-off at sea.

Correct answer: (c) carrier
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what is carrier and boat and aircraft

[Mister Micawber]

Don't you have a DICTIONARY?
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Native English teacher at Mister Micawber's