Don’t make a noise! They _______on a physics problem now.
#41516
A
will work
B
are working
C
worked
D
have worked
推荐题目
I’m sorry you’ve missed the train. It _______ 10 minutes ago.
#41855
A
has left
B
had left
C
left
D
has been away
---Look! What a nice and clean toilet! ---Yes. It ______ every morning.
#37598
A
is cleaned
B
has been cleaned
C
is being cleaned
D
was cleaned
—What does your sister usually do in the evening?—She usually______ TV, but now she _____ a book. .
#39688
A
watch; read
B
watches; is reading
C
is watching; sees
D
watches; is seeing
—There a football match____ October 10th. Shall we go to watch it? — Sure .let’s go.
#37661
A
will have, on
B
will be , on
C
is going to have, on
D
is going to be ,in