[ Adverbial Clause of Manner ]
The popular singer performed at the prestigious concert hall _____ it had been her debut.
A. as
B. as if

Random Topics:
Comparatives and SuperlativesCommon & Proper NounsConditional ClauseNoun ClauseRelative & ModalsPresent and Future TensesBasic TensesSo - Too - Either - NeitherSubjective and Objective PronounVerb + Infinitive or GerundOther quiz:
Grammar › ViewThe guests are coming at 8 p.m. I ___________ cooking by then.
A. am going to finish
B. will finish
C. will have finished
D. may finish
Conditional Sentences › View
Water boils at 100 degrees Celsius if it ____ that temperature.
A. reaches
B. has reached
C. reach