[ Tenses ]
He slipped while he ___ the stairs.
A. climbed
B. climbs
C. was climbing
D. is climbing

Random Topics:
Verb Tenses and SubordinatesVerb Tenses and Subject Verb AgreementVerbs - third personTOEIC Tenses, VerbsThings in EnglishGerunds and Infitinitivestoo / enoughused to vs be used to vs get used toVerb FormsLinking Words and ConjunctionOther quiz:
Simple Present Tense › ViewThis animal can run very fast. It has a very long neck. It _____leaves. It has four long legs. It’s a giraffe.
A. Eat
B. Eating
C. Eats
D. To eat
IELTS Vocabulary › View
a place where animals and plants live and are protected
A. nature reserve
B. release into the atmosphere
C. natural habitat
D. yield
Grammar › ViewWe’re going to school … my dad’s car.
A. by
B. on
C. in
Tenses › View
By the time she arrived at the party, everyone ____
A. Already left
B. Had already left
C. Will already leave
D. Will have already left
