[ Grammar and Vocabulary ]
You _________ be careful about your safety online.
A. should
B. shouldn’t
C. mustn’t
D. can’t

Random Topics:
Modals of Necessity and SuggestionPronoun-Verb AgreementGerund - to Infinitive Finite and Non-Finite VerbGrammar and PrepositionsTenses (Present, Past, Future Forms)Unless If First ConditionalAdjective Clause and Adverb ClausePhrases & ClausesQuantifiers & Modal VerbsOther quiz:
Tenses › ViewMy mom (cook) dinner right now.
A. My mom cook dinner right now.
B. My mom cooking dinner right now.
C. My mom cooked dinner right now.
D. My mom is cooking dinner right now.
Relative & Modals › View
Complete each sentence with the correct word form: __________ technology is amazing.
A. modernize
B. modern
Future Perfect Continuous Tense › ViewYour friend will be angry since he … so long.
A. would have been waiting
B. will have been waiting
Grammar › View
___________ dish is your favourite – chicken curry or vegetable soup?
A. What
B. When
C. Which
D. Whose