单项选择题
A. was selling B. sells C. is selling D. will be selling
Mr. Kimura （）a speech when I entered the hall A. made ...
单项选择题Mr. Kimura （）a speech when I entered the hall
A. made B. was making C. will make D. makes
It （）for ten days straight last December A. snowed ...
单项选择题It （）for ten days straight last December
A. snowed B. was snowing C. has snowed D. had been snowing
Man has （）been to the Moon A. last B. already ...
单项选择题Man has （）been to the Moon
A. last B. already C. ago D. in
