[ Grammar ]
Did you succeed in ________ the problem?
A. solve
B. to solve
C. solving
D. solved

Random Topics:
Simple present/ past/ future tenseFigurative Language VocabularyThere is or There areModal Verbs and ConditionalsCountable and UncountableGerund vs InfinitiveSo - Too - Either - NeitherCoordinate ConjunctionFirst Conditional SentenceVerbs & Phrasal VerbsOther quiz:
Grammar › View— ___does John go shopping?—He never goes shopping.
A. How
B. How much
C. How often
D. How many
Commas › View
Next semester I will take biology, the study of living organisms, to complete my college hours.
What is the correct use of the comma?
A. Around extra information
B. items in a series
C. After an introductory clause
Simile, Metaphor or Personification › ViewThe idea was a fire in my head.
A. Simile
B. Metaphor
C. Personification
Grammar - must & have to › View
Someone else other than the speaker has made the decision.
A. can
B. should
C. have to
D. must