单项选择题
We go to the cinema（）a week.
A.often B.once C.seldom D.usually
单项选择题 We are going to have a singing party tonight. Would you like to join us?（）
单项选择题 We are glad that we finally managed to get into contact（）them.
单项选择题 We are disappointed to find that the quality of the products here（）very poor.
