____ the days he had spent with his Amer
题型:选择题
问题:
____ the days he had spent with his American friends, he couldn't help_____. [ ]
A. Keeping up; smile
B. Staying up; smiling
C. Looking back on; smiling
D. Looking at; to smile
____ the days he had spent with his American friends, he couldn't help_____. [ ]
A. Keeping up; smile
B. Staying up; smiling
C. Looking back on; smiling
D. Looking at; to smile