下列说法正确的一项是（ ）

It’s extremely dangerous for the drivers to __________ speed as the traffic lights are changing.

I enjoy playing computer games, but I can’t _____ too much time ____ that.

_______ no one agreed with him, ______ he insisted on learning play the piano.

_I use your computer to send ane-mail—Yes, you ______ But you mustn’t keep ittoo longI’ll surf the Internet after supper