article（）

A:warm B:toward C:start D:warn

exams( )

A:same B:tense C:gas D:reason

comb( )

A:trouble B:club C:lab D:doubt

bud（）.

A:future B:flute C:bush D:function

stomach（）.

A:punch B:headache C:chase D:teach

bud（）.

A:future B:flute C:bush D:function

bud（）.

A:future B:flute C:bush D:function