I am _____ first cloned monkey and I was born at _____ research center in the USA.
A. the; a B. an; the C. /; a D. the; the
Mother wanted to be a good provider, a role she _______ since her marriage to Father.
| A．shoulders | B．has been shouldering |
| C．is shouldering | D．shouldered |
What the doctor really doubts is ______ my mother will recover from the serious disease soon.
| A．when | B．how | C．whether | D．if |
--- Life is all about choices. It’s your choice _______ you live a life.
--- I quite agree. It’ you that choose to be in a good mood or bad mood.
| A．where | B．why | C．that | D．how |
The agent was about to sign his name to the document_______ , to our surprise, a stranger broke in to prevent him.
| A．while | B．when | C．as | D．until |
It was fine yesterday so I ______ the trouble to carry my raincoat with me.
| A．don’t need to take | B．mustn’t have taken |
| C．didn’t need to take | D．needn’t have taken |