—Have you seen my e-mail about our TESL project? —Yes. Luckily I checked my e-ma

题型：甘肃省模拟题难度：来源：

—Have you seen my e-mail about our TESL project?
—Yes. Luckily I checked my e-mails yesterday. Normally I ______ my e-mail box for days. [     ]
A. haven’t opened
B. didn’t open
C. hadn’t opened
D. don’t open

答案

举一反三

Three weeks having gone by, the cause of the accident _____ unknown to the public.      [     ]
A. remains
B. is remaining
C. has remained
D. is remained

题型：同步题难度：| 查看答案

— Roderick had an accident yesterday.
— How come ?He very carefully. [ ]
A. drove
B. drives
C. had driven
D. has driven

题型：河北省模拟题难度：| 查看答案

Tom ________ get up late in the past, but now he ________ getting up early. [ ]
A. used to; is used to
B. is used to; used to
C. used to be; used to
D. be used to; be used to be

题型：同步题难度：| 查看答案

Children under sixteen are not permitted to see such kind of films as ________ bad for their mental
development.[     ]
A. was
B. were
C. is
D. are

题型：同步题难度：| 查看答案

Nowadays, the iron and steel industry ________ the key link in socialist production.[     ]
A. is
B. are
C. was
D. were

题型：同步题难度：| 查看答案