[ Basic Grammar ]
How many planets _____ in the solar system?
A. are there
B. is there
C. there is
D. there are

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Modals › ViewAt the age of six, Tom ___ five hundred metres.
A. had to swim
B. could swim
C. should have swum
Grammar › View
She is addicted _________checking her app updates.
A. On
B. From
C. About
D. To
Grammar › ViewShe refused________to me after winning this game.
A. to speak
B. speaking
C. speak
Grammar › View
Cheer up. I’m sure you _____ your exams.
A. don’t fail
B. won’t fail
