[ FOR & SINCE ]
Sue has only been waiting _______ 20 minutes.
A. since
B. for

Random Topics:
ConjunctionsThere is or There areVerbal CommunicationParallelism and Subject Verb AgreementPresent PerfectPronouns and AntecedentsPast Perfect & Past SimplePresent Perfect and Present Perfect Progressive TensesAdjectives & PrepositionPresent simple & ContinuousOther quiz:
Vocabulary › ViewIt is the process of bringing a person, etc., to an agreed standard of proficiency, etc., by practice and instruction.
A. Training course
B. Training exam
C. Training experience
D. Training fees
Grammar › View
Select the SIMPLE PREDICATE:
The football player wipes the sweat off his face.
A. football
B. player
C. wipes
D. face
Grammar › ViewJan had green eyes, but you never saw them.
A. simple
B. compound
Grammar - TOEIC › View
She is not storng enough __ to work yet.
A. to go
B. go
C. going
