[ Grammar ]
We always need ____ where they came from and how they did it.
A. to remembering
B. to remember
C. remembering
D. for remembering

Random Topics:
Suffixes (ing-ed) SentencesActive and Passive Gerunds and InfinitivesTo Infinitive or GerundPresent and Future TensesComplex SentencesPossessive Adjective and PronounContinuous and Perfect TensesNounCompound SentencesTOEFLOther quiz:
Grammar › ViewI ___ sightseeing when I was in Spain.
A. went
B. have been
C. was
D. have gone
No Excuse Words / Conjunction SO › View
He lost the key ____he couldn’t get into his room.
A. for
B. yet
C. so
Grammar › ViewThe ……………….students often play soccer and basketball.
A. energy
B. energetic
Synonyms and Vocabulary › View
We need to maximize our resources.
What is the closest meaning of the bolded word?
A. reduce
B. limit
C. minimize
D. optimize