Heavy objects and light objects fall at the same speed ________ air holds them b

题型：期中题难度：来源：

Heavy objects and light objects fall at the same speed ________ air holds them back.[ ]
A. so that
B. if
C. unless
D. although

答案

举一反三

—How long is it ___ the new math teacher came here?
—Two weeks. The students just wonder how ___ they can go with him.[     ]
A. since, far
B. when, soon
C. before, far
D. that, long

题型：同步题难度：| 查看答案

— What was the party like?
— Wonderful. It’s years ________ I enjoyed myself so much. [ ]

A. after
B. when
C. before
D. since

题型：期中题难度：| 查看答案

—It"s a long time________I saw you last.
—Yes,and what a pity it is now that it will be a long time________we see each other again.[     ]
A. before; since
B. since; when
C. since; before
D. when; before

题型：同步题难度：| 查看答案

The question came up at the meeting ________ we had enough money to do the  research. [     ]
A. whether
B. that
C. if
D. what

题型：模拟题难度：| 查看答案

Welcome to our club.You will be accepted as members ________ your age and sex.[      ]
A. because of
B. regardless of
C. in case of
D. in place of

题型：模拟题难度：| 查看答案