5. In our class, when the bell rang and the taacher closed his book, it was a        or everyone to stand up.
#7582
A
signal
B
chance
C
mark
D
measure
推荐题目
The more _____ you listen to the tape, the _____ you will find it to understand.
#6613
A
carefully; more easily
B
careful; more easily
C
carefully; easier
D
careful; easier
New Zealand _____________the Maori tribe. 
#6435
A
is the home to
B
is home to
C
settle down in
D
is a home of
Their plan was ____.
#5719
A
success
B
succeed
C
a success
D
a successful