I remembered _____ the door before I left the office, but forgot to turn off the lights.
| A．locking | B．to lock | C．having locked | D．to have locked |
---John is said to have learned Italian in Italy for five years.
--________ he speaks it like a native speaker.
| A．No doubt | B．No wonder | C．No problem | D．No curiosity |
Tourism is the ______ for the country’s economy, so its government tries its best to ______ both the natural scenery and the places of interest.
| A．center; protect | B．heart; reserve | C．focus; keep | D．engine; preserve |
The wedding ceremony is unique ____the minority tribe, which attracts many tourists when the time comes.
| A．to | B．for | C．in | D．of |
The island country is _______ its clean waters and clear skies, which are free _____ pollution of any kind.
| A．well known to; of | B．famous for; for |
| C．well-known for; of | D． famous as; from |
People who ______ athletic sports are generally believed to _____ strong bodies, firm muscles but dull heads, which of course is not the case.
| A．take part in; be | B．like; be |
| C．join ; have | D．go in for; have |