There are certain _______when you have to interrupt people who are in the middle of doing something.
#7085
A
chances
B
situations
C
occasions
D
opportunities
推荐题目
Anyone who is in _______ of weapons without permission is considered law-breaking.
#6253
A
command
B
control
C
charge
D
possession
Scientist are not sure about the ___________ of water on the Mars.
#6679
A
occupation
B
existence
C
demand
D
treasure
Scientists have found no ________of life on Mars so far,though great efforts have made on the research.
#7179
A
symbols
B
signs
C
marks
D
signals
---- Can you show me how to use Ipad 2? ---- Why don’t you just read the _____?
#6080
A
instruction
B
introduction
C
description
D
directions