[ Idioms ]
As regular as ______
A. clock
B. watch
C. clockwork
D. dot

Random Topics:
The Present Progressive TenseSimple TenseDirect-Indirect SpeechGrammar : can, could and be able toPrepositions of Time, Place, and MovementUnless If First ConditionalPast and Perfect TensesTime ExpressionsPossessive NounsRelative - ConditionalOther quiz:
Conditional Sentences › ViewIf you eat something now, you ________ hungry later.
A. will be
B. would be
C. won’t be
D. wouldn’t be
Grammar › View
The man ______ car is blue is Mark.
A. who
B. whom
C. whose
D. which
E. when
Prepositions › ViewI will pay the interest … the loan.
A. in
B. on
C. at
Modals and Modal Perfects › View
I ____ finish an essay tonight.
A. have got
B. mustn’t
C. need to