He started to work dilligently _____ he came up with the idea of hybrid rice for the first time in the 1960’s.
#26969
A
at once
B
the moment
C
for the moment
D
in no time
推荐题目
____ the tomb, his bird was eaten by a snake.
#27239
A
As soon as entered
B
When entering into
C
On entering
D
Upon entered
Mr. Johnson starts to work very early in the morning and goes on working until late in the afternoon _____ a break at midday.
#28229
A
with
B
for
C
as
D
through
Was it in 1969______ the American astronaut succeeded ______ landing on the moon?
#27030
A
when; on
B
that; on
C
when; in
D
that; in