Although new problems ______ during the last experiment, they didn’t give up.
The house with the ground is valued ____ three thousand yuan, but I bought it ____ only one thousand yuan.
—What’s that terrible noise?—The neighbors for a party.
The earthquake left,______ a lot of damage to Wenchuan.A. caused B.to have caused C to cause D. having caused
Could it be in the restaurant in ____ you had dinner with me yesterday ____ you lost your handbag?
If _____ to look after luggage for someone else, inform the police at once.