We want to know       he will come back, as we are worried about his safety.
#37328
A
how often
B
how soon
C
how much
D
how long
推荐题目
.---Is it _________ our school? ---No. it’s about three kilometers ________.
#38763
A
far away; far away
B
far from; far away
C
far away from; away
D
far away from; far away
—____ do you go to school in the morning?—At 7: 30.
#42187
A
What
B
What time
C
How
D
Where
----Are these gloves _____________? ----No, they’re not ____________.
#39399
A
yours, mine
B
your, mine
C
yours, my
D
your, my
He seems a(n) _________ person. He always has a lot of things to do. 
#42096
A
smart
B
helpful
C
energetic
D
excellent