[ Grammar ]
Yesterday I had to explain English grammar ______ the class.
A. to
B. about
C. on
D. under

Random Topics:
Subject-Verb AgreementClauses and GerundsFuture Perfect Continuouswould should couldWish / If only ( Present)Passive Voice and Relative ClausesAll, Both, Neither, None, EitherPast Simple vs Present SimpleFirst Conditional, Future Time ClausesPast Perfect vs Past SimpleOther quiz:
Grammar › ViewMartin wrote me a letter about the trip after we ______ on the phone.
A. have discussed
B. discussed
C. had discussed
D. discuss
Tenses › View
I __________ my homework by the time you arrive.
A. finish
B. will finish
C. am finishing
D. finished
Passive Voice Active Voice › ViewMany Parents _____ their children studying at home.
A. are helped
B. help
C. helps
D. are help
Antonyms › View
receded
A. Approached
B. Departed
C. Left
D. Begin
E. Increased