游泳呼吸技术上应注意以下哪些方面
A. 吸气要充分，吸气动作要快
B. 吸气要充分，吸气动作要拉长
C. 在吸气后要有一个短暂闭气阶段，然后开始呼气
D. 呼气相对较慢，呼气后紧接着吸气，中间不宜停顿
E. 吸气时头部和上体宜抬得过高
F. 吸气时头部和上体不宜抬得过高
Cyril had a lot of azaleas in pots. I picked ____ a big red one just coming into bloom.
A. up
B. out
C. of
D. into
He ____ a lot lately, he ought to give up smoking.
A. coughed
B. was coughing
C. coughs
D. has been coughing
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