something that must be filled with air before you can use it
Plurals Conditional Sentence Type 0, 1, 2, 3 Later vs. LatterHave to-ed and -ing AdjectivesModals of Necessity and SuggestionWill or Going toModals - Have to or ShouldGrammar - Nouns
Other quiz: Mixed General Quiz
Select the meaning of the underlined word in the sentence.
The results of the poll were not valid because the sample size was not large enough.
How to use : Read the question carefully, then select one of the answers button.