[ Grammar ]
This invention made a major contribution ____ road safety.
A. in
B. to
C. for
D. on

Random Topics:
Conditionals 1,2,3Present Tenses and ConnectorsPassive of Modal VerbsGrammar - Present Perfect with already, just, yettoo / enoughPhrasal Verb & Prepositional PhraseCommon ErrorComparisonsPronoun Antecedent AgreementComparison and ModalsOther quiz:
Modal Verbs › ViewAt our school we __________ wear a uniform. This is our dress-code.
A. have to
B. can
C. might
D. will
Vocabulary › View
The name of the line that crosses two parallel lines and forms 8 angles.
A. Transversal
B. Translation
C. Transformation
D. Straight
Grammar and Vocabulary › ViewI ________ my car serviced tomorrow afternoon.
A. ’m having
B. have to
C. had
Grammar and Punctuation › View
Which sentence must end with a question mark?
A. Do you know how long it took for the trees to grow
B. We have planted rose bushes around the trees
C. How beautiful the flowers will be
D. I will ask my teacher if I can show you
