— You may find the key to the maths problem on page 107. — Ah, it’s so simple. I wonder why I_________of that.
Could you tell me _________?
She asked me ________.
Our teacher told us the earth ________ round the sun all the time.
I'll let you know as soon as he _________.
I want to know if they _____ the spring sports meeting next month. If they ___ it, I must get ready for it.