1 . During the COVID-19 pandemic, many families merely made ends meet. They, nevertheless, ________ (struggle) to live to the full by the end of last year. （所给词的适当形式填空）

2 . They__________on the program for almost one week before I joined them, and now we ________on it as no good results have come out so far.

A．had been working; are still working	B．had worked; were still working
C．have been working; have worked	D．have worked; are still working