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

Random Topics:
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:
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