-- ________ your homework yet?
-- Not yet. I _______ it.
| A．Have you done; am doing | B．Did you do; am doing |
| C．Have you done; did | D．Did you do; did |
The train was travelling _______ low speed at that time.
| A．by | B．in | C．at | D．with |
— Have you ever been to Sanya? — Yes, ________already.
| A．sometimes | B．some time |
| C．sometime | D．some times |
—__________is it from Nanjing to Yangzhou? — About one hour’s bus ride.
| A．How long | B．How soon |
| C．How far | D．How many hours |
The song was so sweet. We couldn’t stop__________along.
| A．singing | B．to sing |
| C．to singing | D．sang |
The flowers in the garden are different from _________ in vases.
| A．that | B．it | C．them | D．those |