-What do you think of the_______ of the shoes?-They are too big for me.
They still can’t decide ________ with our difficulties in learning math.
Everybody tells us we can’t pass the exam ________ we study hard.
– How do you learn English, Tony? – I usually practice English ________ chatting with my American friends.
---------Would you mind _________me carry the heavy box?---------____________.
Which of these sentences is correct ?