No one knew what        because of the thick fog.
#39880
A
he had happened
B
had happened to him
C
had he happened
D
has happened to him
推荐题目
Last weekend I didn’t _______ any cows but I ______ some horses.
#39291
A
see; see
B
saw; saw
C
see; saw
D
saw; see
I              many new friends since I came here.
#37037
A
make
B
was making
C
will make
D
have made
My father _________ Beijing many times. He _________ there again last week.
#39349
A
has been to; has gone
B
has gone to; went
C
has been in; has gone
D
has been to; went
The Greens ______to France next weekend.
#40165
A
is flying
B
flies
C
fly
D
are flying