There is no simple answer, _____ is often the case in science.
A．as B．that C．when D．where
It’s good to know _____ the dogs will be well cared for while we’re away.
A．what B．whose C．which D．that
I stopped the car ____ a short break as I was feeling tired.
A．take B．taking C．to take D．taken
_________I have to give a speech, I get extremely nervous before I start.
A．Whatever B．Whenever C．Whoever D．However
— Oh no! We’re too late. The train _______.
— That’s Ok. We’ll catch the next train to London.
A．was leaving B．had left C．has left D．has been leaving
Mark needs to learn Chinese _______ his company is opening a branch in Beijing.
A．unless B．until C．although D．since
