Question

what difficulty you have

英语单选题
1（ ）what difficulty————you have_________the problem
A you think ,solving B do you think ,to solve
Cdo you think,solving D you think,to solve
2( )Land animals are thought to _______from sea animals
A develop B have developed C grow D have grown
3( )The teacher required that all the papers _______before 10 am
A were handed in Bwould be handed in
C be handed in D shall behanded in

Answer 1

1.C
本句为特殊疑问句,所以格式应为：特殊疑问词+助动词+后边内容（即特殊疑问词 + 一般疑问句）；第二个空里,have是和difficulty一起的（“有什么困难”）,整句意为“你在解决这个问题的时候有什么困难”,“在解决这个问题的时候”就是in solving the problem,其中in可以省略
2.B
陆地动物被认为是从海生动物进化（develop）来的,而不是长大（grow）过来的,所以从A,B中选；显然所说陆生动物已经进化完了,所以用完成时
3.C
require常用为require sb to do,这里显然应为被动语态（东西是被上交的）,所以是另一个用法sb require + that sth (should) be done,should可省略,故选C