The construction of the two new railway lines   by now.
#99633
A
have been completed
B
has been completed
C
has coompleted
D
have completed
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Oh, look at you---you are trembling! You must feel cold now. In fact, you __________ in person. You can contact us by phone next time. 
#101382
A
didn’t need to come
B
needn’t come
C
needn’t have come
D
don’t need come
Be careful,for the delicate glass ________ easily.
#99442
A
is broken
B
breaks
C
will break
D
has broken
The two friends ______on the Internet for three hours, and they would go on till the next morning.
#101929
A
have been chatting
B
had been chatting
C
were chatting
D
had chatted