[ 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:
Grammar › ViewDid you take________photos in the zoo?
A. any
B. much
C. a little
D. a few
General › View
Which continent is the largest?
A. Asia
B. Europe
C. Africa
D. South America
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
