. William ________________ complete his assignment on time because he didn’t find the books he needs.
A. isn’t able to
B. couldn’t
C. had better not
D. mustn’t

Random Topics:
Modals - Have to or ShouldA(n), the, no articleVerb & GrammarVocabulary : Coming & GoingSo / Neither / Either / TooArticles & QuantifiersPresent Perfect and Simple Past TenseArticle & PrepositionGrammar- Later/LatterVerbs with Prepositions and ConjunctionsOther quiz:
Conditionals › ViewIf we took the 10:30 train, We would arrive early
–>__________________, We would arrive early
A. Did we take the 10:30 train
B. Should we take the 10:30 train
C. Were we take the 10:30 train
D. Were we to take the 10:30 train
Present and Past Simple Passive › View
This problem ______by your brother yesterday
A. was solved
B. will be solved
C. is solved
D. solves
Phrasal Verbs › ViewThe questionnaires were……………. with interviews to make the findings more valid.
A. put forward
B. narrowed down
C. followed up
D. thought over
Grammar › View
Choose the correct word or word pair that completes the sentence.
It _______________ been delayed in another city.
_____
A. must of
B. must have
