Some Southeast Asian countries were quick to ________ the search for a missing Malaysian airliner--Malaysia Airlines Flight 370.
#10789
A
join
B
participate
C
attend
D
involve
推荐题目
theirs  
#13381
A
thread
B
smooth
C
thirsty
D
health
We already have ______pencils, but we need two ____ pens.
#14134
A
dozen of ; dozen
B
dozens of ; dozens
C
dozens of ; dozen
D
dozen; dozen