The students _______ busily when Miss Brown went to get a book she _______ in the office.
#103023
A
had written; left
B
were writing; has left
C
had written; had left
D
were writing; had left
推荐题目
As is known to us all, English books of this kind ________ well in middle schools.
#100296
A
sell
B
sells
C
is sold
D
are sold
－Miss Jones once _________ music at a local college for ten years and now is an actress.－No wonder I often hear her sing some pop songs.
#100798
A
had taught
B
has been teaching
C
taught
D
is teaching
Quantities of water ________for cooling in the only one of the factories that ________steel.
#102723
A
has been needed；produces
B
have been needed；produce
C
is needed；produce
D
are needed；produces
--It’s a pity that you didn’t come to my birthday party last night.--I’m terribly sorry. I ________ for an important lecture.
#100522
A
prepared
B
was preparing
C
had prepared
D
has prepared