Before BASIC came along, there had already been some efficient ways of getting computers to carry out instructions.
举一反三
- We can learn from the passage that _____.() A: some of the group had been there before B: the group had done rock-climbing many times C: some of the group already knew each other D: group all came from the same city
- All the bikes ________ before I came to the store. A: have sold out B: were sold out C: had been sold out D: have been sold out
- It ______ that he was given a fair trial and had no complaint. A: came along B: came out C: came about D: came down
- The classroom _______ cleaned before the teacher came in. A: was B: has been C: had D: had been
- Having finished the work,_____. A: it was almost six o'clock B: a postman came and delivered the evening paper and some letters C: supper had been already prepared D: we had a rest and then had supper