1.The little chick_______ the earthworm, deciding whether to swallow it or let it go.

A.stared at         B.glimpsed at       C.looked into       D.glared at

2.Alfred Nobel's greatness ______ his outstanding ability to combine the qualities of an original scientist with ______of a forward-looking industrialist.

A.lies in; those    B.brings out; the ones                  C.accounts for; that D.comes to; ones

3.We must do whatever we can to            the river being polluted any more.

A.separate                              B.keep

C.prevent                               D.guard

4.The aim was not to________ valuable time with the usual boring pictures.

A.take up           B.make up           C.pick up           D.put up