Eating too much fat can ________ health problems，so we must have a balanced diet.
| A．lead to | B．result from | C．refer to | D．devote to |
Mr Clark thanked God for saving their lives and turning _____he felt was a tragedy into a blessing.
| A．which | B．what | C．how | D．that |
It is just ____ among countries to host the Olympics as to win an Olympic medal.
| A．so fierce a competition | B．as fierce a competition |
| C．such a fierce competition | D．too fierce a competition |
Brain who serves as manager of the company hopes that everything will be better when he quits than when he_______.
| A．has started | B．starts | C．started | D．will start |
--- I’d like a mountain bike which ____ well?
--- Will this one _____?
| A．rides; work | B．rides; do | C．is ridden; do | D．is ridden; work |
Don’t use water to put out the fire if oil catches fire. As is known, oil ____ float on water.
| A．shall | B．must | C．may | D．will |