1、These books were very dear to him and he bought them at () expense when he was studying abroad.

1、These books were very dear to him and he bought them at () expense when he was studying abroad.
A considerate
B considerable
C considered
D considering
2、It was several minutes before I was () of what was happening.
A adequate
B aware
C awake
D alive
3、What () the audience most was the ending of the movie.
A beat
B defeated
C struck
D hit
4、He made up a wonderful reason to account() his absence.
A to
B for
C up
D under