As a teenager, nothing is more valuable than friendship. Lily and Lucy are close friends who are able to talk openly to one another whenever _____ of them feels hurt.
A. either B. both C. all
— What languages ___ in that country?
—German and English.
| A．are speaking | B．are spoken |
| C．speak | D．is spoken |
—Would you like an icecream，Diane?
—No，thanks.I ____ eat them.They're bad for my teeth.
| A．never | B．often | C．always | D．Sometimes |
—Did you find the small village yesterday?
—Yes，without any difficulty，for it has ________ changed over years.
| A．hardly | B．greatly | C．clearly | D．nearly |
Mrs Smith lives in such a big house without a child around.So she feels very ___．
| A．lonely | B．alone | C．rich | D．nervous |
This is 3-D printer. And this is an artificial (人工的) ear. Can you believe that scientists printed this artificial ear by this 3-D printer?
| A．a | B．an | C．the | D．/ |