Millie is _______clever a girl that she has worked out_______ difficult math problems.

I________ you for a long time. –Oh, I_______ in Beijing. I’ve just come back.

The work is really very difficult; _________ it’s very interesting.[ ]

I’mtired, because I havehomework.

My daughter lived in France for five years and now she’s working in a foreign company.—______is no wonder that she speaks such excellent French.