[ Grammar ]
Look! The cat_______ the tree.
a. climbing
b. is climbing

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Grammar & VocabGiving and Asking for AbilityArticle the or zero article (-)Relative - ConditionalNoun PhraseGerunds as objects of prepositionSimple Past/Past ProgressiveTenses of Verbs - UsageConditionals and Modals of ProbabilityGrammar: Defining Relative ClausesOther quiz:
Subject Verb Agreement › ViewHam and cheese _____ served in the restaurant.
A. is
B. are
Grammar › View
Which words complete this sentence correctly?
The remarkable discovery of the Wollemi Pine in the Greater Blue Mountains [________] the area being inscribed on the World Heritage List in December 2000.
A. is why
B. then caused
C. suggested that
D. contributed to
Grammar › ViewWhat is the correct plural form of the word “child”?
A. childs
B. childes
C. children
Vocabulary › View
Scientist that use fossils to answer questions about Earth’s environment in the past.
A. Botanist
B. Astronomer
C. Taxonomist
D. Paleontologist
