连词 and / but 连接句子 — 英语选择题
题目
读句子，选出连词使用正确的一项：Tom 每天都帮妹妹，但是他不会做饭。（帮助用 help，做饭用 cook）
A. Tom helps his sister every day, but he can't cook.
B. Tom helps his sister every day, and he can't cook.
C. Tom can't cook every day, and he helps his sister.
D. Tom doesn't help his sister, but he can cook.