Do you know the stages every inventor must ________ before they can have their invention________ .
#70472
A
go through; approve
B
go through; approved
C
get through; approval
D
look through; approved
推荐题目
The traveler _______ his coat on a stone and _______ down to have a rest.
#71329
A
lay; lay
B
laid; lay
C
laid; laid
D
lied; lied
The heavy snow lasted a few days so that many villages were cut off, thus causing much inconvenience to the villiagers
#83553
A
cut out
B
cut off
C
cut up
D
cut through
Although the educational systems have been a lot, the loads of the students are still very heavy.
#73677
A
transformed
B
transported
C
transferred
D
transmitted
You can’t imagine what great trouble I had ____ his address.
#71871
A
to find
B
of finding
C
finding
D
about finding