30．One of the greatest of unhappiness，in my experience，is the difficulty we have in
accepting things as they are．
| A．reasons | B．styles | C．supplies | D．Sources |
______ in diving suits, they walk around in this magic world, lighted by the lamps of the ship.
| A．Dressing | B．Dressed | C．To dress | D．Being dressed |
---- Who is it that is making so much noise upstairs?
---- ______ the students preparing for the New Year’s Party.
| A．There are | B．They are | C．It is | D．That is |
----What’s that smell?
---- I don’t know, but ______ it is, it’s terrible!
| A．whatever | B．however | C．whichever | D．wherever |
We thought there were 35 students in the dining hall, ____, in fact, there were 40.
| A．while | B．whether | C．what | D．which |
She is very ______ about her ugly appearance, so you shouldn’t stare at her.
| A．sensible | B．sensitive | C．suitable | D．acceptable |