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

—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
D
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
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