—Is your uncle an ________?—Yes, he recently invented ________ useful machine.A. invent, theB. inventor, anC. inventor, a
I ____you yesterday afternoon ,but you ____at home .
My parents always ________ the best in me and encourage(鼓励) me.
____ it’s raining , _______ they expect to go to the park.
The students should take the exams__________ .
He wants to be a writer so he is going to _______ writing stories