[ Grammar ]
Was James playing with his mobile phone…….his classmates were discussing about an endangered species?
A. when
B. while

Random Topics:
Adverb PhrasesIndefinite and Definite ArticlesPRESENT SIMPLE vs PRESENT CONTINUOUS + QUANTFOR & SINCEVOCAB & GRAMMARModals of ProhibitionGerund and InfinitivesPresent Perfect and Present Perfect ContinuousGrammar: Reported QuestionsAdverbial ClausesOther quiz:
Grammar › View________ that the insulation has been replaced, the building is much more energy-efficient.
A. Now
B. For
C. As
D. Though
Grammar › View
What are antecedents related to in grammar?
A. Verbs
B. Nouns
C. Pronouns
D. Adjectives
Grammar › ViewThe downhill course was ___ to a higher part of the mountain.
a. move
b. moved
Conjunctions › View
The Great Wall of China is a famous landmark, _______ the Taj Mahal is in India.
A. and
B. but
C. so
D. nor
