ESL test for intermediate level students

1.Nobody knows what's going on?
(a) meaning
(b) continuing
(c) happening
(d) taking
2.Don't worry we'll see you're all right.
(a) look at you
(b) look on you
(c) look for you
(d) look after you
3.I simply can't stand sugar in my tea or coffee.
(a) can't eat
(b) can't drink
(c) can't tolerate
(d) can't allow
Which ones do you think are correct? Please try to answer yourself first.
C, D, C that's the answer. Quite easy, if you ask me