Haven’t you finished your report yet? — How I regret ________ the weekend _________ TV!

My uncle from Hongkong has changed so much that I could hardly ________ him at the airport.

You may search on the Internet for professors and their courses about the university ________ you may study for four years.

The Chinese language _______ many western languages _______ it uses characters which have meanings and can stand alone as words.

Hardly ______________ when it began to rain