The flight attendant welcomed us ___ the plane. 
#19662
A
abroad
B
aboard
C
board
D
broad
推荐题目
I’m interested in a one-bed room. Do you have any ___________________?
#18316
A
convenient
B
available
C
possible
D
personal
It’s important that he_____ English well.
#19745
A
learn
B
learns
C
learnt
D
learning
 It was _____ opportunity to miss. 
#20654
A
too good an
B
a too good
C
too a good
D
too good