In the past twelve months the research members ______ the effectiveness of many materials in a home building.
#102889
A
had studied
B
would study
C
studied
D
have studied
推荐题目
Isn’t it lovely to think that I ________ myself on the sunny beach tomorrow at this time.
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A
will enjoy
B
will be enjoying
C
am enjoying
D
shall enjoy
The flowers were so lovely that they       in no time.
#103157
A
sold out
B
had been sold out
C
were sold out
D
would sell out
By the time I see you again, I _______ from that school.
#100006
A
have graduated
B
graduated
C
will have graduated
D
graduate