在桥面上作业时应注意桥面及人行道上,不准有露尖的铁钉。
参考答案:对
It’s certain that holding such _________ National Day parade will significantly improve _________ national pride and self - confidence of the Chinese People.
A.the; the
B.a; a
C.a; the
D.the; a
The teacher finally __________ his project to the school board for approval.[ ]
A.admitted
B.permitted
C.submitted
D.accused