----I _________ the book for a whole hour .
---- No wonder you look so tired .
| A．have read | B．have been reading | C．read | D．are reading |
Nowadays some protective parents want totheir kids from every kind of danger, real or imagined.
| A．spot | B．dismiss | C．shelter | D．distinguish |
to sunlight for too much time will do harm to one’s skin.
| A．Being exposed | B．Exposed |
| C．Having exposed | D．After being exposed |
They appearedme, so I had to explain to them.
| A．misunderstanding | B．misunderstood |
| C．to be misunderstood | D．to have misunderstood |
If China’s space technology has achievedbreakthrough in this field, it really is
amazing wonder.
| A．the; an | B．a; an | C．不填; the | D．a; 不填 |
Though he is in his late sixties, the well-known biolo
gist begins each day ____ a sense of adventure and a sense of curiosity.
| A．in | B．with | C．of | D．at |