Helen has got _____ it takes to be a great tennis player. In other words, she has the potential to become world famous.
A．how B．what C．when D．that
— Are these seats available?
— Sorry, sir. The seats _____.
A．have reserved B．are reserved C．reserved D．are reserving
It is difficult for children to change their eating habit later in life. _____，parents should encourage healthy eating from an early age.
A．Otherwise B．Therefore C．Besides D．However
You have no chance of getting the position. I’m afraid you _____ your time if you apply for it.
A．waste B．have wasted C．have been wasting D．will be wasting
With economy developing at great speed, our city has _____ quite a few changes in recent years.
A．witnessed B．accumulated C．arisen D．introduced
Currently，many American women are still faced with the _____ of choosing between work and family commitments.
A．desperation B．confusion C．dilemma D．concern
