问题补充:
The poor boy is in danger. We should do all we help him out.
A. can do
B. can to
C. can to do
D. can
答案:
A. can do
(答案→)B. can to
C. can to do
D. can
解析:这是一个常见结构,补充完整就是:We should do all we can do to help him out。
时间:2019-10-07 05:06:51
The poor boy is in danger. We should do all we help him out.
A. can do
B. can to
C. can to do
D. can
A. can do
(答案→)B. can to
C. can to do
D. can
解析:这是一个常见结构,补充完整就是:We should do all we can do to help him out。