—Did it _______ you 4 hours to get to Shanghai last week?—Yes, just 4 hours by bus.
The young man plays violin very well, but he plays basketball badly.
You ______ wear sports shoes when you climb a mountain.
Thomas wants to know ______Nina lives.
He didn’t go there yesterday, _______he?
He ______when the UFO arrived. He didn’t wake until the UFO disappeared.