求大神出3道关于疑问词后用陈述句语序的英文选择题问题补充里我放例题Professor Nelson wanted to know_英语解答

求大神出3道关于疑问词后用陈述句语序的英文选择题问题补充里我放例题
Professor Nelson wanted to know___ A.when would the conference begin B.when the conference would begin C.when will the conference begin D.when the conference will begin

人气：103 ℃　时间：2020-04-28 05:42:20

解答

1.I want to know__
A.when the plane will take off.
B.when will the plane take off.
C.when would the plane take off.
D.when the plane should take off.
2.If __,what will you do?
A.it rains tomorrow.
Bit should rain tomorrow.
C.it would rain tomorrow.
D.it rain tomorrow.
3.If only I have taken it,____
A.I will finish it on time.
B.could I finish it on time.
C.I would finish it on time.
D.will I finish it on time.