Peter was so excited he received an invitation from his friend to visit Chongqing.
| A．where | B．that | C．when | D．why |
After Jack had sent some e-mails, he _______ working on his project.
| A．had started | B．has started | C．started | D．starts |
---Hi Mary, haven’t seen you for a long time. __________
--- Fine. What about you?
| A．How are you doing? | B．What are you doing? |
| C．How do you do. | D．What do you do? |
After completing and signing it, please return the form to us in the envelope ________.
| A．providing | B．provided | C．having provided | D．provide |
_______the Teachers’ Day ,the students are cleaning the classroom.
| A．In spite of | B．In celebration of |
| C．In search of | D．In place of |
I need to get another dictionary, because cover is dirty and page is missing.
| A．a; a | B．a; the | C．the; a | D．the; the |