Sunglasses are used ________ protecting your eyes in sunny days.
| A．to | B．for | C．by | D．as |
_____ we need more time is obvious.
| A．What | B．That |
| C．/ | D．Who |
This room is ___________ that room.
| A．as three times big as | B．three times as bigger as |
| C．three times as big as | D．as big as three times |
Tom is taller than _________boy in our class.
I like these photos and they can ____me _____the life living in the countryside.
| A．think ;of | B．let ;down |
| C．wake ;up | D．remind;of |
China is one of________ countries in the world.
| A．the largest | B．the larger |
| C．the large | D．larger |