[ Grammar ]
The telephone ________________ by Alexander Graham Bell
A. is being invented
B. is invented
C. was invented
D. will be invented

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Grammar › ViewHey look! Your mom ….. with our teacher.
A. are saying
B. is talking
C. talks
D. is
Connectives (because, due to, owing to, because of) › View
__________ a mistake on the page, the exam was cancelled.
A. Due to
B. because