The radiation amount of a mobile phone for two half-hour periods per day is equal to _______ to an X-ray for ten seconds.
| A．expose | B．exposing | C．exposed | D．being exposed |
The teachers were always trying to ______ the excited students at that time.
| A．calm down | B．set down | C．let down | D．turn down |
I thought she was African, but ______ she’s Spanish.
| A．besides | B．actually | C．on the other hand | D．at all |
Her operation was a success, but it took her a long time to ___ from her illness.
| A．suffer | B．return | C．recover | D．come |
She changed so much that I could hardly _____ her when we met again after a separation of 20 years. What’s more, she had just had her hair cut, and she was wearing new glasses.
| A．recognize | B．know | C．remember | D．tell |
We had planned to climb the hill this morning, but the heavy rain _____ our plan.
| A．settled | B．ignored | C．upset | D．received |