It _______ long ______ we know the result of the experiment.
#40329
A
will not be, before
B
is, after
C
will not be, until
D
is, before
推荐题目
Mary _____ a photo of Professor Smith while he was making a speech.
#39268
A
took
B
takes
C
would take
D
has taken
--- Did you notice him come into the hall?--- Sorry, sir. I _______ with my friends online.
#39325
A
was chatting
B
chatted
C
would chat
D
am chatting
--What if you don't finish your work on time? -- Mrs. Brown will be very angry.
#36820
A
happens
B
is happened
C
happened
D
will happen
This morning, when I walked by, I saw many children ____ in the park.
#42558
A
played
B
play
C
playing
D
to play