: __________before we depart the day after tomorrow, we should have a wonderful dinner party. ( ) A:Were they arriving B:did they arrive C:Had they arrived D:Were they to arrive 答案: Were they to arrive 3、
: __________before we depart the day after tomorrow, we should have a wonderful dinner party. ( ) A:Were they arriving B:did they arrive C:Had they arrived D:Were they to arrive 答案: Were they to arrive 3、