Peng Liyuan, First Lady of China invited Obama’s wife and his children to visit China March, 2014.
#45859
A
a; on
B
the; in
C
a; in
D
the; on
推荐题目
During the Spring Festival, the heavy snow stopped many peoplefrom ____ back home.
#50193
A
go
B
goes
C
went
D
going
The government decided to take some action _______ the situation turned too bad.
#49281
A
until
B
unless
C
when
D
before