3． He is __________ in reading this __________book．A． interested ，interesting B． interesting ，interestedC． interesting，interestingD． interested，interested
3． He is __________ in reading this __________book．
A． interested ，interesting B． interesting ，interested
C． interesting，interesting
D． interested，interested
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Alex, a student from Australia, is very ___________ on Beijing opera. A.fondB.concernedC.keenD.interested
1． He used to _______in the sun，but now he is used to _______at night．A． read ; readB． reading ; readC． read; readingD． reading; reading
The great changes of the city astonished every visitor to that city.A:attacked B:surprisedC:attracted D:interested
The great changes of the city astonished every visitor to it.A:attacked B:surprised C:attracted D:interested