—He was nearly drowned once.
—When was _____?
—_____ was 1998 when he was in middle school.
| A．that; It | B．this; This | C．this; It | D．that; This |
The computer system _____ suddenly while he was searching for information on the Internet.
| A．broke down | B．broke out | C．broke up | D．broke in |
Cycling is highly _____ to people’s health and the environment.
| A．fashionable | B．beneficial | C．changeable | D．suitable |
I recognize her __I met her at the airport, although we haven’t seen each other for ten years.
| A．the moment | B．in the moment |
| C．for the moment | D．at the moment |
Unless ________ to speak, you should remain silent at the conference.
| A．invited | B．inviting | C．being invited | D．having invited |
_____ in Haikou for five years, he is not used to the weather in his hometown.
| A．Live | B．To live | C．Having lived | D．Have lived |