will be quite a long time _______ she is back again, so don’t be too cross with her.
| A．that | B．since |
| C．before | D．until |
She _____ an old friend of hers yesterday while she was shopping at the department store.
| A．turned down | B．dealt with | C．look after | D．came across |
A few _____ looked at him curiously when he suddenly stopped and burst out crying.
| A．passers-by | B．passer-bys |
| C．passers-bys | D．passer-by |
Changbai Mountain is one of China’s largest nature reserves, and has many ____ plants and animals.
| A．various | B．rare | C．major | D．common |
Mrs. Green went back home hurriedly, where her two little twins were crying, _____ they were hungry.
| A．said | B．saying | C．to say | D．having said |
Parents have a duty to ____ their children from the harmful effects of the Internet.
| A．hide | B．prevent | C．stop | D．protect |