The US is ___ number 7, while the UK is _____ the 13th position.
Since David ______ downloaded a virus into his computer, he can not open the file now.
---How often do you eat out? ---______, but usually once a week.
--Have the police found the parents of the baby found by the road? ---Not yet. His identity ______.
---Mr. Smith, ______ he have all these letters typed for you right away? ---He ______. They should be ready by 10 o’clock this morning.
I won’t give you such help ______ you tell me the truth. It’s beyond my ability.