Experts warn that medical waste from hospitals, if      properly, may contribute to spreading diseases.
#88622
A
not handled
B
not being handled
C
not to be handled
D
not having been handled
推荐题目
To their great relief, the missing child returned home, ______, after an absence of two weeks. 
#95964
A
looked tired and healthy
B
tired and healthy
C
tiredly and healthily
D
looking tired and healthily
The sad thing is _________the world-famous artist devoted his whole life _____, he only sold one painting before he died.
#97125
A
although; to painting
B
that; to paint
C
that although; to painting
D
although that; to paint