The pilot asked all the passengers on board to remain ______ as the plane was making a landing. 
#93163
A
seat
B
seating
C
seated
D
to be seating
推荐题目
___ poor at English, I'm afraid I can't make myself ___.
#94166
A
To be; understand
B
I'm ; to understand
C
Being; understanding
D
Being; understood
I'd better not catch ______ that again !
#98886
A
your doing
B
you doing
C
you to do
D
you being doing
I'll have you ______ English in six months . 
#98544
A
speaking
B
speak
C
spoken
D
be able to speak