[ Grammar ]
Electron storage rings ___ in investigations of the structure of materials.
A. They are used
B. That are used
C. Used
D. Are used
Random Topics:
Pronouns, Sentence Structure, and Figurative LanguageGrammar-Verbs & Nouns Singular, Plural, GenderEnglish for TourismAdjectives and VocabularyPassive ModalsPhrasal VerbSecond Type ConditionalVerbs: Action, Linking, and HelpingPresent Simple QuestionsTime ConjunctionsOther quiz:
Tenses › ViewShe had run a cafe before he ____ from High school
A. graduate
B. had graduated
C. graduated
D. Was graduating
Present Simple › View
Liars are people who _____ the truth.
A. don’t tell
B. doesn’t tell
C. tells
D. tell
Continuous Tenses › ViewWhich sentence best illustrates the use of the future continuous tense?
A. They were having dinner.
B. They are having dinner.
C. They will be having dinner.
D. They had dinner.
Gerund & Infinitives › View
It is important ____ people back right away
A. calling
B. to call