---Allen, are you coming with us? ---I’d love to, but something unexpected ____.
#101426
A
has come up
B
was coming up
C
had come up
D
would come up
推荐题目
We are confident that the environment ________ by our further efforts to reduce pollution.
#100189
A
improves
B
will be improved
C
has improved
D
was improved
-Why can’t I smoke here? --At no time__________ in the dormitory.
#102579
A
is smoking permitted
B
smoking is permitted
C
smoking is allowed
D
does smoking permit
Miriam arrived at 5 pm, but Mr. Whitker _______ the store.
#99789
A
closed
B
has closed
C
had closed
D
was closed