[ Grammar ]
There was an explosion in technology _____ the beginning of the 20th century.
A. in
B. at
C. through
D. on

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Grammar: was/wereGrammar - some / anyConditional Sentence Type 0-3Present Perfect Simple & Present Perfect ContinuousPresent Simple vs Past SimpleSports VocabularyApostrophe GrammarVerb ConjugationParts of Speech and GrammarSentence TransformationOther quiz:
Vocabulary › ViewThroughout the hot, dusty journey, we ___ in the thought that soon we would be swimming in the cool lake.
A. ingenuous
B. commend
C. reprisal
D. reveled
Tenses › View
He (study) for his exams right now.
A. He study for his exams right now.
B. He is studying for his exams right now.
C. He studying for his exams right now.
D. He studied for his exams right now.
Grammar and Vocabulary › ViewObviously, I’d be … of that list.
A. in search
B. in trouble
C. in charge
D. on the top
Modal Verbs › View
Ronnie doesn’t see well. He ______________wear glasses.
A. can
B. should