Ladies and gentlemen, please fasten your seat belts .The plane _____ .
#101606
A
takes off
B
is taking off
C
has taken off
D
took off
推荐题目
I’m not a teacher in this school．I _____ until a new teacher arrives．
#101643
A
am just helping out
B
could just help out
C
just help out
D
have just helped out
It is really a pity that I can not attend your wedding party this weekend. I _________ a very important international conference in Paris then.
#99261
A
have attended
B
are attending
C
have been attending
D
will be attending
Unfortunately, when I dropped in, Professor Smith ________, so we only had time for a few words.
#104738
A
has just left
B
had just left
C
just left
D
was just leaving
--- Have you finished the report? --- No. I ______ it all this week.
#104275
A
will do
B
had done
C
have done
D
have been doing
By the time Jack returned home from England, his son _______ from college.
#100009
A
graduated
B
has graduated
C
had been graduating
D
had graduated