Our teacher said to us that the earth _________ around the sun.
| A．travelled | B．travels | C．is traveling | D．was traveling |
Our country is developing at an amazing speed, which is _____makes me feel so proud.
| A．that | B．why | C．what | D．where |
The mother didn’t know _____to blame for the broken glass as it happened while she was out.
| A．who | B．which | C．they | D．that |
Behind the coach _____our team wearing blue suits．
| A．have | B．walk | C．is followed | D．appears |
The poor little boy who _____caught stealing a cake over there is an orphan．
| A．has | B．had | C．got | D．is |
-----Did Mary come to the party?
---I don’t know．She _____while I was out．
| A．may have come | B．must have come |
| C．might come | D．could come |