A 7-year-old boy received an operation on Tuesday successfully _______ he has many other health problems.
| A．since | B．however | C．though | D．therefore |
--- An explosion at a coal mine killed at least 62 workers and left another 13 missing．
--- Yes, _________ news came as ________ shock to us all．
| A．the; the | B．/; / | C．/; a | D．the; a |
As a young man , he’d rather have a room of his own, however small it is, than __ a room with someone else．
| A．to share | B．to have shared | C．share | D．sharing |
__________the burglar from the second floor when the house owner found him stealing last night．
| A．Down jumping | B．Down jumped |
| C．Jumping down | D．Jumped down |
Playing QQ's "Happy Farm" by planting, watering, fertilizing, spraying, harvesting and selling of virtual vegetables, fruits and flowers, we can find out _____ all the excitement is about．
| A．that | B．if | C．what | D．when |
A giant helium（氦） balloon is telling residents of Paris how good or bad the air quality is．When it's good, the balloon ----measuring 22 meters wide and 32 meters high---shines green．_________, it's red．
| A．Though terrible | B．Whenever good |
| C．If worse | D．When bad |