The sunspot came into its active stage, ____ that happens once every eleven years.
A. one B. it C. the one D. what
The famous scientist, ____ a dinner party will be held tonight, is to arrive soon.
A. in his honor B. in whose honor C. in which honor D. in honor of him
The driver could have survived, but he ____ the seat belt.
A. had been fastening B. hadn’t fastened C. was fastening D. didn’t fasten
____ with a difficult situation, Mr Smith made up his mind ____ his boss for advice.
A. Facing; to ask B. To face; asking C. Faced; to ask D. Having faced; asking
A bit more effort, I think, ____ the problem could be settled.
A. and B. so C. or D. but
She told me that ______ was needed at that time was some good luck.
A. it B. what C. this D.as