[ 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:
Grammar › ViewWhen I …………. a day off from work, I usually go to the beach.
A. will have
B. had
C. have had
D. have
Tenses › View
A new shopping mall ___ (to build) in our city now. — Use Present Continuous Tense.
A. is being built
B. will be built
C. was built
D. is built
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