语法英语选择题
1.It_____sunday,there was no school.
A.being B.is C.was D.were
2.I wanted some thread but there was_____in the drawer
A.none B.nothing C.no one D.no thing
3.The scientists and technicians overcame a lot of difficuty_____the personal computer.
A.they had developing B.having developing C.they had developed D.which had to develop
4.Information _____with the electronic address of its destination computer.
A.is delivered to be labeled B.to be delivered is labeled
C.deliveredto be labeled D.delivering is labeled
(需要解释说明)