Many children start to learn to play _____________ piano at an early age.
A.a B.an C.the D./
The little girl has a high _____________, she should be sent to hospital right away.
I didn’t catch the school bus and arrived _________ for class this morning.
We have to hurry up because the plane will take ________ in an hour.
Hearing the __________ story, all the students began to laugh loudly.
All our dreams can __________ true as long as we have the courage to keep dreaming.