[ Grammar ]
They ________ the computer long time ago
A. have invented
B. has invented
C. invented
Select your answer:

Random Topics:
Passive Modals, Impersonal PassivePast Future TensesPerfect and Past TensesGerunds and TensesSimple vs Present Continuous TensesProgressive Tensetake, make, doTime ConjunctionsDo not- Does notPrepositions of Time, Place, and MovementOther quiz:
Grammar › ViewTrue or False: A verb can come before or after the subject.
A. TRUE
B. FALSE
Homonyms › View
He walked for days in the ___ without seeing another living thing, only sand.
a. desert
b. dessert
