Wehave_thedrumonebyoneandfoundthatmostofthemareleaking.
A: tested
B: examined
C: traced
D: rolled
A: tested
B: examined
C: traced
D: rolled
举一反三
- It is essential that all the facts ______ first. A: can be examined B: will be examined C: has been examined D: be examined
- A new theory ______ before it can be put into practice. A: must be tested B: be tested C: can be tested D: to be tested
- This is the material ______ in the laboratory last week. A: to be tested B: B. testing C: being tested D: D. tested
- Over _______ , dead. A: rolling the goat B: rolled the goat C: did the goat roll D: the goat rolled
- The murderer _________ by the police. A: is been traced B: is being traced C: is been tracing D: is being tracing