[ Grammar ]
Using a projector, teachers can display visual images on smart interactive white boards, ____ improves the learning process.
A. that
B. what
C. which
D. why

Random Topics:
Subject Verb Agreement and Verb TensesHomophone & HomonymPresent ProgressivePast and Present TensesSubject Verb Agreement Irregular VerbModals for DeductionVocabulary and IdiomsSentence Structure and Verb TensesDependent PrepositionsBasic GrammarOther quiz:
Tenses › ViewShe _____ yawns (ngáp) in English class.
A. sometimes
B. already
C. sometime
D. though
Idioms › View
“Across the board” means ___.
a. everyone or everything is included
b. to travel between countries
c. uninteresting
The professor reminded the students ______ all their assignments before the final exam.
A. to submit
B. submit
C. submitting
D. submitted
Grammar › View
As it was very late, Sarah pleaded with the girls to go to bed.
A. Compound
B. Complex
