The black box is a necessary device on an airplane, which records its speed, direction and whether everything on the airplane______ normally.
#102293
A
will function
B
functioned
C
is functioning
D
has functioned
推荐题目
—What’s that terrible noise?—The neighbors_______for a party.
#103917
A
have prepared
B
are preparing
C
prepare
D
will prepare
----- My father will be here tomorrow. ----- Oh, I thought that he _____ today.
#104149
A
was coming
B
is coming
C
will come
D
comes
The old man __________ in Tibet for two years as a volunteer teacher；it is an experience he often mentions.
#101367
A
served
B
serves
C
is serving
D
has served
A lot of people often forget that oral exams ________ to test our communicative ability.
#99578
A
design
B
are designed
C
are designing
D
are being designed
—I________the failure was your fault.—Yes，I see.You only want to learn the details.
#99195
A
didn't think
B
was not explaining
C
am not suggesting
D
haven't expected