They wonder _______.
if robots will think like a human in 25 to 50 years
if will robots think like a human in 25 to 50 years
when robots will think like a human in 25 to 50 years
The old photos ___________them __________the old days when they were young.
Tom has much difficulty _______ Chinese so he often asks me ______ help
Which _________ you rather __________, tea or coffee?
The food mother cooked _____ very delicious.
A _____ lazy man can’t earn _____ money.