[ Gerunds and Infinitives ]
One of the main themes in this book is the importance of ______your friends.
A. to stand by
B. standing by

Random Topics:
First and Second ConditionalPresent Continuous for FuturePassive VoicesComparative & Superlative AdverbsPresent/Future/Past Simple/Present PerfectGrammar and Sentence StructureGrammar and SyntaxNoun, Pronoun, Adjective, VerbAdverb of MannersComparativesOther quiz:
Grammar › ViewHadi looks very tired, he ___for hours.
A. has been driving
B. had been driving
Pronoun › View
______don’t want to leave my house
A. I
B. She
C. Them
D. his
E. My
Phrasal Verbs › ViewIf you don’t know what the word means, you’d better ______ in the dictionary.
A. look it over
B. Look for it
C. look it up
D. look into it
Root Word › View
The meaning of “hydro” is
A. earth
B. water
C. life
D. air
