高三英语语法问题.谁帮我解析一下!

高三英语语法问题.谁帮我解析一下!
.1.—Have you heard about that school bus accident?
—Yes, fortunately all. on board including the driver ______.
A. were saved B. was saved C. have saved D. has been saved
疑问：我选择了D 错了 帮我写一下A(正确)解析,下面题也是 解析最重要哦
2.The April Fools’ tradition is said ______in die sixteenth century.
A .to start B. to be starting C. to be started D. to have started
我选了B 错了
疑问：解析
3.
.—Hi,Mr. Smith. Which department do you work in?
一I am in the Marketing Department now, but I ______in the Sales Department before long.
A. worked B. will work C. have worked D. will have worked
疑问：我选了A 这道题不难,我没看到后面BEFORE LONG 解析不用了 但是我老是搞不懂 什么时候用过去式 什么时候用晚成时,我知道过去过去完成.我是不懂 过去 和 完成时 到底该怎么分
4..It is comforting t© see that ______, we are doing our part for the environment
A. as small may be we B. as we may be small
C. small as may be we D. small as we may be
帮我解析
5.The project was carefully panned, or a great deal of money ______.
A. will. lose B. will be lost C. would have lost D. would have been lost
6. i wonder how... i wonder that 怎么区分?
.
例题：—I wonder ______so many people are crazy about Gangnum Style.
—It’s good for bodybuilding, and it brings people a lot of fun, you know.
A. how B. where C. why D. that
做这道题时候,我突然想到了上面那个疑问 我凭语境和语感 选对了.但是 什么时候用 i wonder that 呢!