The bookstore ________ a big sale. The books there must be very cheap.
A.has had B.had C.is having D.was having
The water dark and dirty. It’s no longer safe to drink.
A.became B.will become C.has become D.was becoming
I thought he was not able to get to the top of the mountain, but he ________ at last.
A.succeeds B.succeeded C.has succeeded D.will succeed
If Mary ________ next Sunday, we will go boating together.
A.will come B.comes C.came D.is coming
I failed in this English exam, but I believe I ________ better later.
A.will do B.am doing C.have done D.did
I don't remember when and where I ________ this book.
A.buy B.am buying C.will buy D.bought
