While the children … (play) in the yard, their mother … (call) them.
A. have played; called
B. played; was calling
C. were playing; called
D. were playing; was calling

Random Topics:
Prepositions after VerbsGerund & ParticipleSimple and Continuous Present TenseWho or WhomSubjunctiveModal, Causative Verb & Elliptical StructurePassive Voice of TensesGerund - to Infinitive Passive Voice with ModalsTOEFL Adjective and AdverbOther quiz:
Past and Present Continuous tense › ViewHe ______ a diorama for the science fair with to-scale models of the planets, moons, and asteroids.
A. Designs
B. Had designed
C. Is designing
D. Was designing
Grammar › View
We ______ for our English test at the moment.
a. study
b. are studying
c. studies
d. studying
Reported Speech › ViewTania said, “Could you change my domain name?”
A. Tania asked if she could change the domain name.
B. Tania asked if we could change her domain name.
C. Tania said if I can change my domain name?
D. Tania wanted to know if she can change her domain name.
Conjunction › View
I reminded him to buy some sugar ____ he forgot.
A. and
B. but
C. so
D. because
