[ Grammar ]
Electron storage rings ___ in investigations of the structure of materials.
A. They are used
B. That are used
C. Used
D. Are used
Select your answer:
Random Topics:
Quotation MarksFuture Perfect Tense Indefinite Pronoun ConjunctionAdverbs and Adverbial PhrasesCOUNT - NONCOUNT NOUNSFuture - Will and Be going toPresent Simple and ContinuousNumbers
Other quiz:
Spelling › ViewWhich is the correct spelling of the word…
A. Calendar
B. Calender
Grammar › View
The girl practices playing the piano every day because she wants to play the piano better. As the saying goes __________________________________
A. all’s well that ends well
B. practice makes perfect
C. honesty is the best policy
D. kills two birds with one stone
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