--- It’s the fourth time that heavy smog(雾霾) has hit the city this month.
--- It’s high time we _______ measures to fight air pollution.
| A．will take | B．took | C．to take | D．taking |
___ the fact that he found math boring, he was still good at it.
| A．Despite | B．Though | C．While | D．As |
They say that ___ Chinese language is particularly difficult for ___ European.
| A．the; an | B．/ ; the | C．the; a | D．/ ; a |
— Hey, you haven’t been acting like yourself. Everything OK?
—______ .
| A．I’m fine, thanks | B．Sure, it is | C．That’s good | D．It’s OK |
It was in the garden of his old house ______ he grew up ______ he dug up a pot of gold.
| A．that; that | B．where; where | C．that; where | D．where; that |
The athlete’s years of hard training ______ when she finally won the Olympic gold medal.
| A．cast down | B．got through | C．paid off | D．faded out |