If you sleep less than seven hours, you are three times more       to catch a cold.
#19413
A
possible
B
certainly
C
probable
D
likely
推荐题目
Though he is_______, he never feels_______. 
#19842
A
lonely; alone
B
lonely; lonely
C
alone; lonely
D
alone; alone
After a whole day’s heavy work ,the old worker returned home ,______________________.
#18583
A
hungry and tiring
B
hunger and tired
C
hungry and tired
D
hunger and tiring
After doing part-time jobs or a week, he got a______ position as office-boy.
#20844
A
permanent
B
aggressive
C
universal
D
abstract.