_Would you like to come to my house this Sunday? _Thank you! I’d love to. _______I have to see my uncle on that day.
Please help Jack ________ his bike. It's missing (不见了).
----What about ________ a rest?---OK, Let’s go out and have a walk.
—How ______ you spell it?______.
There is ______“r”in“red”.
A set of ______ on the table.