Mr Zhang often tells us _____ afraid of making mistakes when you speak English.

I still remember to the Famen Temple and what I saw there.

Look! That man looks like Mr．Brown．—It ________ be him, for I know he is at home．

There is no doubt _____ China has made rapid progress in space exploration.

How is it that you know she’s got back from the UK? —She ____ when I came out of the house this morning.