The basic systems, such as transport and communication that a country or organization uses to work effectively
A. Underground
B. Urban
C. Communication
D. infrastructure

Random Topics:
Poetry VocabularyGrammar - may/might/couldGerund, Infinitive, Bare VerbReported speech (statements)Auxiliary WordsTOEFL GrammarVerbals and GerundsGrammar Error Correction (Simple Present Tense)Travel VocabularySimple Present ProgressiveOther quiz:
Grammar › ViewNever________any doubt about the matter.
A. has there been
B. hasn’t there been
C. there has been
D. there hasn’t been
Passive Voice › View
A: “Where were you?”
B: “Ah, I was lost on the street.”
Which sentence has the same meaning with the underlined?
A. I got lost on the street.
B. I get lost on the street.
C. I have lost on the street.
D. I’m losing on the street.
Vocabulary & Grammar › ViewIf we _________ (not/see) each other tomorrow, we will meet next week.
A. won’t see
B. don’t see
Grammar › View
The teacher told her, ” Work with your classmates.”
A. The teacher told her to work with her classmates.
B. The teacher told her to work with your classmates.
C. The teacher told her to work with my classmates.
