I'd be interested to know ___ AI will surpass the human brain.
if / whether
The main____ the article is making is...
point
If he _____ (write) his master thesis, he _____ (have) a diploma now.
hadn't written, wouldn't have
I couldn't___________ (drink) so much yesterday, I hate whiskey...
couldn't have drunk
I demand a full ___ for the bad quality shoes.
refund
I'm calling in ___ to the order number ...
regard
what sets us apart from our ____ is...
competitors
How will we ____ ourselves from our competitors?
differentiate
She was born in the 80s, so she must ________ (be) a fan of Britney Spears.
have been
I haven't seen her in the mall all week. - She must ___ died.
have
I guess you shouldn't buy a ______ Gucci bag, it's much better to buy a real one, or just a simple Zara one.
counterfeit
You can't ____ the fact that colours make a great difference to our mood and behaviour.
deny
I recommend you ____ (install) an alarm system to deter burglars.
to install
I recommend that your acquaintance _____ (have) enough change at him all the time.
has
Marilyn Monroe ______ (kill) by her lover, but no one knows for sure.
could / may / might / can have been killed
