--Mum, I’m going to visit my uncle. What about staying there a week?
--A week is too long. Try to be back in a _____ of days.
| A．number | B．dozen | C．couple | D．score |
At first I regretted _____ them to stay, but we soon became great friends.
| A．to invite | B．invited |
| C．to have invited | D．inviting |
Most of my friends shop at the stores _____ the goods are very cheap.
| A．which | B．where |
| C．whose | D．why |
Weclimbedhigher_____wemightseethescenesbetter.
| A．sothat | B．even though |
| C．in case | D．as if |
According to the factory safety rules, all accidents _____ be reported to the safety officer.
| A．may | B．can |
| C．would | D．shall |
John seemed puzzled about _____ the question meant.
| A．how | B．why |
| C．what | D．which |