Thanks to scientific research, we now have a good understanding of ______ an earthquake is and why it happens.
#78873
A
how
B
which
C
whether
D
what
推荐题目
Now teachers tend to be more dependent on ________ is thought to be a great teachingaid — the computer.
#78846
A
that
B
which
C
what
D
it
It is uncertain ______ side effects these weight-loss drugs will bring about, although hundreds of thousands of patients have taken it.
#79260
A
that
B
whether
C
how
D
what
I would like to join the school volunteer project, and I often imagine _______.
#37144
A
what I should do it
B
what should I do
C
what I should do
D
how should I do
--- Excuse me! Could you tell me ____________?--- Sure. Go straight and turn right. It’s down Bridge Street on your left.
#38222
A
where can I find a pay phone
B
where I can find a pay phone
C
when can I find a pay phone
D
when I can find a pay phone
---I don’t know_____________?---In ten minutes.
#36712
A
how long has he been here
B
how long will the film last
C
how often he goes to visit his parents
D
how soon the film will begin