(2019原创)Sorry, I can't go to help you. I ________ Helen with her history.
A.help B.was helping
C.have helped D.am helping
If someone ________ stones at you, don't throw back. Use them to build your own foundation instead.
A.throws B.threw
C.is throwing D.has thrown
(2018唐山丰润区一模)Just wait for a moment. I________ an article.
A.write B.wrote
C.am writing D.have written
(2018唐山市路北区一模)My grandma________looking at that photo on the wall. It reminds her of her childhood.
A.enjoys B.enjoyed
C.was enjoying D.will enjoy
Hurry up, please! Everyone ________ for you.
A.waits B.waited C.is waiting D.was waiting
(2018石家庄桥西区一模) I want to get some bread from the supermarket before it________.
A.closes B.will close
C.close D.closed
