During the period of recent terrorist activities, people _____ not to touch an unattended bag.
#103992
A
had always been warned
B
were always being warned
C
are always warning
D
always warned
推荐题目
 A high-tech exhibition ________in the National Museum now. Let’s go and visit it.
#100890
A
will be held
B
is being held
C
was held
D
has been held
After school we went to the reading-room to do some reading, only to be told that it ____________.
#101081
A
was decorated
B
had decorated
C
had been decorating
D
was being decorated
In the school hall, where a meeting       , some students are busy preparing for it.
#102043
A
is held
B
has been held
C
is being held
D
is to be held