To improve the quality of our products, we asked for suggestions _______ had used the product.
A．no matter who B．who C．whoever D．whichever
With more forests being destroyed in that area, huge quantities of land _______ deserts each year.
A．has been turned into B．had been turned into
C．is being turned into D．are being turned into
—Excuse me sir, where is the room 301?
—Just a minute. I’ll get Bob _______ you to your room.
A．show B．shown C．to show D．showing
However, at times this balance in nature is disturbed, _______ a number of possibly unforeseen effects.
A．resulting from B．resulting in
C．having resulted from D．having resulted in
He just _______ the headlines because he was too busy to read the whole newspaper.
A．stared at B．looked around C．glared at D．glanced through
The new technology has opened up a very wide _______ of possibilities.
A．extent B．number C．collection D．range
