There is no simple answer,________ is often the case in science.
--- Would you like to go to the concert with me, Mary?--- I have got no interest in it; ____, I have lots of homework to do.
Shelly had prepared carefully for her biology examination so that she could be sure of passing it at her first _____.
The young mother saw her baby fall to the ground, _____ brought her heart to her mouth.
I’m sorry to say that I can’t imagine such a gentleman _____ be so rude to a lady.
--- Did you go to London for vacation? --- I _____ to go, but I got sick at the last minutes.