A number of tests have been conducted to _______ that these drugs have no side effects.
A. find out B. look for
C. make sure D. work out
Every year, typhoons and losses ______ lead to are frightening though measures have been taken.
A. which B. that C. they D. ones
The managers discussed the plan that they would like to see __________ the next year.
A. carry out B. carrying out
C. carried out D. to carry out
I can’t thank him too much, ____________ I couldn’t have finished the project in time.
A. without his help B. with his help
C. without whose help D. with whose help
Seeing the happy _______ of the kids playing on the playground, I can’t help thinking of my childhood.
A. sight B. scene
C. view D. sign
Claire had her luggage ________ an hour before the plane left.
A. check B. checking
C. to check D. checked
