[ Progressive Perfect and Simple Verb Tenses ]
What are the helping verbs for present progressive?
A. Was/when
B. Is/has
C. Had/has
D. Is/are

Random Topics:
Simple and Progressive Verb TensesHas and HavePrepositions of Time & PlaceHelping and Linking VerbsTypes of Sentence StructuresBASIC GRAMMAR - PRONOUNSPresent Simple & Present Progressive TenseGrammar - Present Perfect with already, just, yetCompound and Complex, ConditionalsFuture Perfect TenseOther quiz:
There vs. It › ViewThe following is correct. A: I do not like Los Angeles. B: Really? Why not? A: It is too many people.
A. True
B. False
Aptitude : Problems on Trains › View
A train 800 metres long is running at a speed of 78 km/hr. If it crosses a tunnel in 1 minute, then the length of the tunnel (in meters) is:
A. 130
B. 360
C. 500
D. 540