--You look worried. What's your ?--I have trouble learning maths.
—He ____be in the classroom, I think.—No, he_____ be in the classroom. I saw him go home a minute ago.
We prefer at the party rather than_____.
The 2014 Winter Olympics was held in Sochi, in February.
Something is wrong with my computer. I’ll have it______.
I’m not free today, If I ____ time, I ____ and help him with you.