The anchor was then()and the siren sounded.
A.aweigh
B.weight
C.weigh
D.weighing
参考答案:A
——Did Jack come back early last night?
——Yes. It was not yet eight o’clock _______ he arrived home.
A.before
B.when
C.that
D.until
《中华人民共和国民用航空法》规定,中华人民共和国对领空享有完全的、排他的主权。