It’s obvious that she ______ him for a long time.

—Have you moved into your new classroom building? —Not yet, it ______________.

Great changes ________ in the village in the past two years.

The teacher has confidence in the naughty but clever boy and is sure that he _____ to a key university．

Lin Tao has returned from the UK recently. He ______ at Cambridge for four years, during which we ______ with each other on the Internet.