问题
If I remember correctly, you were supposed _____ the keys on your way here. [ ]
A: collecting
B: collect
C: to collect
D: collected
B: collect
C: to collect
D: collected
正确答案是：
同类题型
I met Tom last month .—Really ?—Yes We each other since we graduated from college
Hi, let’s go skating.—Sorry, I’m busy right now. I ___________ in an application form for a new job.
, it’s predicted that global temperature will rise futher at current rates of CO2 emission.
Stevecome back because the window is open—Yesbut he _______left it open last night