[ Gerunds ]
There’s someone_______on the door. Come to see who he/she is.
A. knock
B. knocking
C. to knock
D. having knocked

Random Topics:
Hope, Thank, Modal VerbsPassive Voice & TensesPast Perfect SimpleLinking Verbs and TensesContinuous TensesApologizingProgressive Verb TensesCardiology ServicesPast ParticiplesModals in the PastOther quiz:
Grammar › ViewI’m not interested in what ____________________.
A. is he doing
B. he is doing
Comparative Degree (Adjective) › View
Adjective: big
He has the _________________ feet among us.
A. Bigger
B. Biggest
A fire……….destroyed a shop and closed part of a main shopping street in a south Wales town was started in outdoor waste bins.
A. which
B. what
C. where
D. in which
Idioms › View
“Against the clock” means ___.
a. a new record
b. a test of speed or time
c. an impossible task
