They Shanghai two days ago.—Yes. They for two days.

__________ I admit that the problems are difficult, I don’t agree that they cannot be solved

As to the question of whether we will sell our house or who we shall sell the house to, you ____ have answer by tomorrow.

In our school, some students are active______ some are shy, yet they can be good friends with one another

I’m just wondering ______ I first met Tom