plc与上位机通讯协议:THEY HAD A PLEASANT CHAT ___ A CUP OF COFFEE

THEY HAD A PLEASANT CHAT ___ A CUP OF COFFEE They had a pleasant chat__a cup of coffee. A.for B.with C.during D.till THEY HAD TO CROSS A VIVER After they had a rest, they went on ___ they've got a toothache还是they have a ...还是they've had a ...? For many years they had wanted a child They....in the river and had a good time.(swin) They had a good time in Australia last summer "They spend ( ) little they had ( ) a very expensive car." "They spent ( ) little they had ( ) a very expensive car."