A great explosion _______ in a chemical factory in Hangzhou several months ago.
#71902
A
occurred
B
occurred to
C
has happened
D
has taken place
推荐题目
Susan’S husband encouraged her to attend the concert，_________ he would take care of the kids．
#64535
A
deciding
B
allowing
C
promising
D
supposing
Whoever leaves the lab last, _____ all the lights are turned off.
#76018
A
make sure
B
make sure of
C
be sure
D
be sure of
I’ve _____ all my papers but I still can’t find the contract.
#73457
A
looked into
B
looked up
C
looked through
D
looked after