— Do you know the tower _____ in the heart of the city?
— You mean the one _____ from the Ming Dynasty?
| A.locating; dated | B.being located; dating | C.located; dating | D.located; dated | 
---Why was it ______ you were so angry?
 ---Because we failed to take part in the basketball match.
| A.which | B.that | C.how | D.when | 
The Bakers intend to buy a house but _____ must be within their power.
| A.they | B.one | C.it | D.which | 
Fully ______in preparing teaching assignment at school,she no longer has much time to enjoy the various activities as usual.
| A.occupy | B.occupying | 
| C.occupied | D.to occupy | 
---Where is your report of this month?
 ---Oh sorry,I______ to email to you.
| A.forget | B.have forgotten | 
| C.forgot | D.was forgetting | 
She is always the first staff to go to the office and the last to leave,______ I guess is why she is promoted so quickly.
| A.who | B.which | C.that | D.what |