[ Grammar ]
Yuri Gagarin was one of the pioneers of space _____.
A. exploration
B. explorer
C. exploring
D. explorers

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Wh- Questions Present Simple TenseNouns, Articles, DeterminersThere is or There arePresent/Past/Future Continuous TenseContinuous and Perfect TensesSecond and Third ConditionalFuture FormsIndependent/Dependent Clauses & Relative ClausesContrast Linking WordsSentence and FragmentOther quiz:
Modal Verbs › ViewI stayed in bed all day yesterday. I __________ go to work, it was my first summer day off.
A. couldn’t
B. needn’t have
C. didn’t need to
D. shouldn’t
Grammar of Conjunctions and Prepotitions › View
I had a cute puppy _____ I lost him.
A. and
B. although
C. so
D. but
Vocabulary › ViewWhat is the definition of “Thesis” in the vocabulary list?
A. A point of view.
B. The setting or situation in which something happens.
C. The main idea of a text.
D. Facts or information that prove something.
Modals for Deduction › View
You should wear a jacket; it’s cold outside. What type of advice is this?
A. Practical advice
B. Financial advice
C. Emotional advice
D. Fashion advice