[ Idioms ]
That book will come ___ very useful.
a. up
b. in
c. down

Random Topics:
PersonificationWord FormationVocabulary and TensesPronouns of QuantityGerund or InfinitiveGrammar - Present Perfect with for and sinceAll, Both, Neither, None, EitherInfinitive and GerundGerunds and TensesAdverbs of Time and PlaceOther quiz:
Tenses › ViewHow are students encouraged to complete the tasks in the worksheet?
A. By working individually or collaborating with peers
B. By memorizing definitions
C. By writing essays
D. By reading aloud in class
Future Tenses › View
Can you use present tenses to talk about the future?
A. Yes.
B. No.
C. Are you kidding me?
D. Is this a serious question?
Grammar › ViewYou can now communicate ………….…… your friends online using your mobile phone.
A. of
B. in
C. for
D. with
Vocabulary and Grammar › View
Which word best describes someone who enjoys being alone and being quiet?
A. outgoing
B. energetic
C. reserved
D. empowering