Experts believe     people can waste less food by shopping only when it is necessary. 
#78980
A
why
B
where
C
that
D
what
推荐题目
 —Do you know ________ the school?—About twenty minutes ago.
#36563
A
when he left
B
when did he leave
C
when he leaves
D
when does he leave
My pen pal from America is coming to visit me . I’m thinking about ______________.
#37914
A
What present did I give her
B
how I will give her a surprise
C
where will we have a big meal
D
whether I planned a trip for her
—Can you tell me ________? -- With Lucy’s help.
#37369
A
when you did it so well
B
when did you do it so well
C
how you did it so well
D
how did you do it so well