I don’t know ______to do with the maths problem. It’s too hard.
Armstrong became interested in _______ ever since he took his first _______ at the age of six.
How many times have youthe Science Museum?
If you want to go , the library is a good choice.
In the kindergarten, there are various toys for the children.
What would you like to drink, tea or coffee? is OK. I don’t mind.