[ Vocabulary and Grammar ]
__________ any apps before they made this one?
A. Did they designed
B. Had they designed

Random Topics:
Question tag and + - AgreementBecause / soSimple PastCommunicative GrammarWho am I?Compound and Complex, ConditionalsModal and Phrasal VerbsIdentifying Sentence TypesPresent Perfect vs Past SimpleComparative Adjectives and AdverbsOther quiz:
Homonyms › ViewThe teacher called the ___ at the beginning of each class.
a. role
b. roll
Articles › View
___ Eiffel Tower is ___ famous landmark in Paris.
A. The, a
B. A, the
C. (no article), a
D. The, the
Grammar › ViewCombine the sentences with a compound subject.
A. Lions and Giraffes live in savannas.
B. Lions and giraffes live in savannas.
C. Lions live in savannas and Giraffes live in savannas.
Verb Tenses › View
Which of the following sentences is in the present perfect tense?
A. I will read that book.
B. I read that book.
C. I have read that book.
D. I am reading that book.
