by the advances in technology, many farmers have set up farms on their land.
| A．Being encouraged | B．Encouraging |
| C．having encouraged | D．Encouraged |
--- Have you finished the book?
--- No, I’ve read up to _______ the children discover the secret cave.
| A．in which | B．what | C．that | D．where |
He was late for the meeting _________ the heavy snow.
| A．as a result | B．because of | C．as a result of | D．in the result |
They tried to convince her _______ his innocence.
| A．of | B．about | C．to | D．in |
We can never expect ______ bluer sky unless we create _______ less polluted world.
| A．the; a | B．a; a | C．the; the | D．a; the |
Was he sorry for what he’d done ?
| A．No wonder | B．Well done | C．Not really | D．Go ahead |