Using a telescope we could see that something     .
#102178
A
is happening
B
happened
C
would happen
D
was happening
推荐题目
Hurry! The train _______. You know it _____at 8:30am. .
#101032
A
leaves; leaves
B
is leaving; leaves
C
leaves; leaving
D
is leaving; is leaving
---Remember how we met for the first time, Dick?---Of course I do. You _________ to the teachers' office hurriedly and ___________ me.
#101575
A
had walked; weren't noticing
B
were walking; didn't notice
C
had been walking; noticed
D
walked; had noticed