—Wendy, thanks ____ helping me learn English.— You’re welcome. And you help me a lot ____ my maths, right?
—Who is the girl purple? —She’s my classmate, Kate. A. with B. in C. of
—Here you are. — ________.
Andy is very tall, but I’m _______.
Is there a TV _________your classroom? Yes, of course.
—What’s in the pencil-box? —________ a pen in it.