问题
选择题
Yesterday I didn’t _____ any seals but _____ some dolphins.
A．see, saw
B．see, see
C．saw , see
D．saw, saw
答案
答案：A
此题重点考查一般过去时的肯定句和否定句的基本结构
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Yesterday I didn’t _____ any seals but _____ some dolphins.
A．see, saw
B．see, see
C．saw , see
D．saw, saw
答案：A
此题重点考查一般过去时的肯定句和否定句的基本结构