From the school name on the package, we guessed that it might belong to a student of our school.
| A．to mark | B．marking | C．marked | D．having been marked |
Mobile phones __________ in China are well worth trusting for many reasons.
| A．produce | B．producing |
| C．have been produced | D．produced |
We are invited to a party __________ in our club next Friday.
| A．to be held | B．held |
| C．being held | D．holding |
I felt very tired when I got home, and I __________ straight to bed.
| A．go | B．went |
| C．had gone | D．have gone |
—What about your self-drive trip yesterday?
—Tiring! The road is being widened, and we __________ a rough ride.
| A．had | B．have |
| C．would have | D．have had |
After completing and signing it, please return the form to us in the envelope __________.
| A．providing | B．provided |
| C．having provided | D．provide |