Most of the students haven’t finished their papers on time for __________reasons---one of which was that they carried out a week-long investigation in the countryside.
A.previous | B.accurate |
C.original | D.various |
Whether it will do us harm remains_______ .
A.seen | B.seeing | C.being seen | D.to be seen |
There, in the corner, sat three girls,_______.
A.sew | B.were sewing | C.to sew | D.sewing |
_______the early train,you'll have to get up early and rush in a taxi.
A.Catching | B.Caught | C.To catch | D.Catch |
The_______waiter came up to us and said,"You are welcome."
A.smiling | B.smiled | C.smile | D.to smile |
There is a big dog_______to a fence outside the house.
A.tying | B.tied | C.to tie | D.ties |