The lifeboat ______in case it is necessary to take off the crew of the damaged ship.
A: has been put aside
B: has been put away
C: has been set aside
D: is standing by
A: has been put aside
B: has been put away
C: has been set aside
D: is standing by
举一反三
- ______ during the war, the airport has never been used again. A: Has damaged B: Having damaged C: Has been damaged D: Having been damaged
- The meeting______ in October, put the plan has been put off again and again. A: was to have been held B: ought to have held C: was to be held D: must have been held
- The rest of the crew of the ship back home. A: is not coming B: are not coming C: has not been D: had not<br/>been
- A number of their products ________ put on exhibition. A: has been B: is C: have been D: are
- The project requires more labor than____because it is extremely difficult. A: have been put in B: to be put in C: has been put in D: being put in