Kitty __________ the airport in the early morning, but she still missed the flight.

I _____ Wang Tao in the street yesterdayWe _____ each other since he went to Beijing

I have been studying computer for years and I still ___

It makes no difference to him______ you stay here or go to Hong Kong.

A small car is big enough for a family of three ______you need more space for baggage.A．once B．in case C．if D．unless D【解析】试题分析：考查连词：