[ Modal Verbs ]
Despite his efforts, Tom ___ solve the complex problem. He approached it in a wrong way.
A. can’t
B. could
C. couldn’t

Random Topics:
Degrees of AdjectivesHave GotGrammar - could / could notContinuous TensesCorrelative ConjunctionConditional Sentences Type 1Simple Past TenseRelative Clauses and etcVocabullary TestSo, Such, Many, MuchOther quiz:
Verb Tenses › ViewI…………….my parents at the weekend.
A. help
B. helping
C. helps
Prepositions › View
I think it won’t rain as the dark clouds have been blown _____ by the wind.
A. across
B. from
C. around
D. away
Present Perfect Tense › ViewI (know) ______ Laura since we both (start) _____ on the same day at Thames College five years ago.
A. know … started
B. have known …. started
C. have known … have started
D. knew … started
Grammar › View
Bill ………………. really hard at the moment, because his company just received a big order from China.
A. Is work
B. Working
C. Is working
D. Works
