With his attention________on his mobile phone，he didn’t notice his headteacher’s appearance.
| A．fixed | B．having fixed |
| C．fixing | D．to fix |
相关试题
The boy had a _____ escape when he ran across the road in front of the bus.
| A．close | B．short | C．narrow | D．fine |
Now that we've discussed our problem, are people happy with the decisions?
| A． | taking | B． | take | C． | taken | D． | to take |
Everybody was touched _____ words after they heard her moving story. 
| A．beyond | B．without | C．of | D．in |
One of the most important questions they had to consider was _____ of public health. 
| A．what | B．this |
C．that | D．which |
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