[ Grammar ]
The students prepared in advance for the Science Fair.
A. Correct as is.
B. Omit in advance.

Random Topics:
Quantifiers & Modal VerbsPast Continues TenseArticle and Order of AdjctiveAdverbs of frequencyWh-QuestionConditional Sentence Type 2 and Type 3Modals and ResponsibilitiesThe Present Progressive TenseSimple and Continuous TensesMixed ConditionalsOther quiz:
Tenses › ViewSo who…or what…______________ around upstairs?
A. had walked
B. had been walking
C. was walking
D. walked
Zero & First Conditional › View
If your flat ______ a big balcony, you ______ plants there.
A. will have/grow
B. won’t have/will grow
C. has/are growing
D. has/could grow
Grammar › ViewWhere is the rug?
A. Beside the tub
B. on the wall
C. under the tub
D. in the shower
Grammar › View
The different colors of ________ the different temperatures of the stars’ surfaces.
(A) the stars indicate
(B) indicating stars
(C) the indication that the stars
(D) stars indicating that
