—There are 60 students in my class, and __________ of us are girls. —Wow! You have 40 girls! A. three fifths B. one third C. two thirds
—I’m sorry. I can’t play baseball with you—_______.
I don’t like swimming, _______ I won’t join the swimming club.
It’s important_______ the piano well.
—What’s the matter_______ Betty? —She lost her wallet.
He is not good at learning English and he always does his homework_______.