—Why not paint the Golden Gate Bridge blue or other colors?
—The bridge has always been painted "International Orange" ______ that color is easier to see in the heavy fog.
| A．because | B．since |
| C．though | D．while |
相关试题
Please ________ in the classroom．
| A．don’t run |
| B．doesn’t run |
| C．not run |
| D．can’t run |
—Don’t play near the classroom，please．
—________．
| A．Yes，I do |
| B．Sorry，I won’t |
| C．No，I don’t |
| D．Not at all |
—Can they swim in the lake？
—________．
| A．Yes，they do |
| B．No，they don’t |
| C．Yes，they can |
| D．No，they didn’t |
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