请问有谁知道答案,请帮帮我,谢谢

请问有谁知道答案,请帮帮我,谢谢
1. It was not ____ midnight that they discovered the children were not in their beds.
A. beforeB. at C. after D. until
2. We shall ask for samples ____ and then we can make our decision.
A. to be sent B. being sentC. to sent D. to have been sent
3. I can’t find the recorder in the room. It ___ by somebody.
A. must have taken B. may have taken C. may have been taken D. should have been taken
4. We’ll be only too glad to attend your party ______ we can get a baby-sitter.
A. so far as B. provided that C. unlessD. except that
5. The old gentleman never fails to help ______ is in need of his help.
A. whomB. who C. whoever D. whomever
6. ______ under a microscope, a fresh snowflake has a delicate six-pointed shape.
A. Seeing B. SeenC. To see D. To be seen
7. “When are you going to visit your uncle in Chicago?”
“As soon as ______ our work for tomorrow.”
A. we’re complete B. we’d completeC. we’ll complete D. we complete
8. Neither John nor I ______ able to persuade Richard’s grandfather to attend the wedding.
A. am B. areC. are to be D. is
9. You ought ______ the matter to the manager the day before yesterday.
A. to reportB. to have reportedC. to reporting D. have reported
10. We look forward to ______ to the opening ceremony.
A. invite B. be invitedC. having been invited D. being invited

1.It was not __D__ midnight that they discovered the children were not in their beds.
A.beforeB.at C.after D.until
2.We shall ask for samples __A__ and then we can make our decision.
A.to be sent B.being sentC.to sent D.to have been sent
3.I can’t find the recorder in the room.It __D_ by somebody.
A.must have taken B.may have taken C.may have been taken D.should have been taken
4.We’ll be only too glad to attend your party ___B___ we can get a baby-sitter.
A.so far as B.provided that C.unlessD.except that
5.The old gentleman never fails to help ___C___ is in need of his help.
A.whomB.who C.whoever D.whomever
6.___B___ under a microscope,a fresh snowflake has a delicate six-pointed shape.
A.Seeing B.SeenC.To see D.To be seen
7.“When are you going to visit your uncle in Chicago?”
“As soon as ___D___ our work for tomorrow.”
A.we’re complete B.we’d completeC.we’ll complete D.we complete
8.Neither John nor I ___A___ able to persuade Richard’s grandfather to attend the wedding.
A.am B.areC.are to be D.is
9.You ought ___B___ the matter to the manager the day before yesterday.
A.to reportB.to have reportedC.to reporting D.have reported
10.We look forward to __D____ to the opening ceremony.
A.invite B.be invitedC.having been invited D.being invited