Since nuclear(核) pollution broke out in Japan, in March,2011,we are all _____ of it very much.

A．frightened

B．be frightened

C．frightening

D．be frightening

Since you are tired, you’d better＿＿＿and have a good rest.
A. stop to study      B.    stop study    C.  stop studying

Since you are tired, you’d better＿＿＿and have a good rest.
A. stop to study      B.    stop study    C.  stop studying

Since nuclear(核) pollution broke out in Japan, in March,2011,we are all _____ of it very much.

   A. frightened         B. be frightened       C. frightening        D. be frightening

Since we ________ our homework now. Let’s have a rest.

A．do

B．are doing

C．will do

D．have done