55. I can’t see John anywhere. Where _____ he have gone?
| A．may | B．can | C．might | D．Should |
—Come on, please give me some ideas about the project.
—Sorry, with so much work ______ my mind, I almost break down.
| A．filled | B．filling |
| C．to fill | D．being filled |
Some customers accuse Toyota ______ being slow to fix the car problems, which makes them disappointed.
| A．in | B．at |
| C．with | D．of |
Zheng He's first stop during the expedition was in ______ is a part of Vietnam today.
| A．where | B．what |
| C．which | D．that |
He is said ______ to Beijing last week.
| A．go | B．to go |
| C．to have gone | D．having gone |
Dogs have a very good ______ of smell and are often used to search for survivors in an earthquake.
| A．sense | B．view |
| C．means | D．idea |