By the time Billy was 6, he in the sea.
#101498
A
had already swum
B
was already swimming
C
has already swum
D
already swam
推荐题目
I don't know when he ___. But when he ___ back, I’ll let you know.
#103935
A
comes ; will come
B
will come; comes
C
comes;comes
D
will come; will come
Could I do some explanations? I to call on you last night, but somebody came to see me just when I was to about leave.
#102287
A
would intend
B
intended
C
had intended
D
was intending
---Have you seen Jane this week?---No, but I ________ her call on my way to work this morning.
#100624
A
received
B
have received
C
had received
D
was receiving
The result of the experiment was very good, ___________ we hadn’t expected.
#103395
A
as
B
that
C
which
D
what
—Where is Mother?—She is in the kitchen. She ______the housework all morning.
#99274
A
does
B
has been doing
C
has done
D
was doing