[ Vocabulary & Grammar ]
. He had his robot vacuum cleaner ____ by the engineer.
A. activate
B. to activate
C. activating
D. activated
Random Topics:
Adjectives vs AdverbsQuestion TagsIdiom and TensesPrefixes SuffixesArgumentative VocabularyPast ContinuousPrepositions and Preposition PhrasesPresent Perfect or Past Simple TenseFuture - will / going to / present continuousPassive and Active SentencesOther quiz:
Grammar › Viewwhat do you call a bunch of eggs
A. a troupe
B. a crate
C. a bundle
Present Perfect Tense › View
Which of the following sentences is about present perfect tense?
A. I did not write a Christmas card to my Grandpa.
B. I will not write a Christmas card to my Grandpa.
C. I have not written a Christmas card to my Grandpa yet.
D. I do not write a Christmas card to my Grandpa.
Present Perfect Simple & Continuous › ViewThis is the third cup of coffee I ______ this morning, but I still don’t feel awake.
A. have had
B. have been having
C. have
D. had
Vocabulary › View
resources that cannot be replaced
A. Gross Domestic Product (GDP)
B. globalization
C. export
D. nonrenewable resources