[ 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:
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