[ Grammar ]
He has got a bulldog quality. He always insists _____ solving each problem completely
A. on
B. in
C. at
D. for

Random Topics:
-ing / InfinitiveGrammar - Collective NounsNouns - Word Form-IONGerundSynonymsSentence CompletionConditionals Type IConditional Sentences Type I, IIPast Progressive TenseModal Verbs and ConditionalsOther quiz:
Conjunctions › ViewHelen’s very clever ……………………………. her sister isn’t .
A. and
B. or
C. but
D. so
Grammar › View
I saw many people fishing ________ the river.
A. on
B. over
C. among
D. along
Grammar › ViewYou will have to cancel the concert tomorrow if it ……. .
A. rained
B. will rain
C. rains
D. would rain
Grammar › View
Though at first Tony enjoyed his karate class, he soon lost ………. and stopped going.
A. attention
B. interest
C. enthusiasm
D. excitement
