Everyone except Tom and John ________ there when the class began. 
#44181
A
are
B
is
C
were
D
was
推荐题目
------ Why does the lake smell terrible? ------ Because large quantities of water _________.
#85918
A
have been polluted
B
has polluted
C
have polluted
D
has been polluted
More than one student ___ that experiment.
#86086
A
has finished
B
have finished
C
are finishing
D
were finishing
--- I’m sorry I _____ my homework at home.--- Don’t forget ________ it to school tomorrow, please.
#43839
A
left; to take
B
forget; to take
C
left; to bring
D
forget; to bring