If trees continue _______ at the present rate, it won’t be _______there is no trees for shade.
| A．to cut down; long before |
| B．being cut down; before long |
| C．to be cut down; long before |
| D．cutting down; before long |
_____ wants to study well must learn things _____.
| A．No matter who; with heart | B．Who; with his heart |
| C．Whoever; by heart | D．Whoever; by his heart |
Written by Suzanne Collins, the novel “The Hunger Games” has been on Best-Selling Books list for two years since it ______in 2008.
| A．has been published | B．was published | C．had published | D．published |
Many strange new means of transport have been developed in our century, the strangest of _______ being perhaps the hovercraft(气垫船).
| A．which | B．them | C．that | D．it |
The company used 50 percent of the raw materials, the rest of which __________ sent to other cities to help the factories there.
| A．is | B．was | C．are | D．were |
--- Do you really think I can achieve my goal ?
--- Absolutely .___ you give up halfway .
| A．If | B．Unless | C．Since | D．because |