________，I lost heart in English learning, but my teacher often said to me, “Keep on working hard；you'll succeed ________.”
| A．At a time；in time |
| B．At a time；on time |
| C．At one time；in time |
| D．At one time；on time |
China’s Beidou global satellite navigation system will have been completed by 2020, ________ of more than 30 satellites.
| A．consisting | B．consisted | C．to consist | D．consists |
It was in the small house ________ was destroyed by the flood ________ he spent his childhood.
| A．which; that | B．that; where | C．which; where | D．that; which |
--Excuse me, you are supposed to hand in your design now.
--I’m sorry, my computer broke down, or I ________ it last night.
| A．finished | B．would finish |
| C．had finished | D．would have finished |
The world famous director, three of ____ movies won Oscar awards, is reported to have retired.
| A．whose | B．which | C．whom | D．his |
Once ________ at a table, left-handers need to move the water glasses put on the right side to their more convenient left side.
| A．seating | B．having seated | C．seated | D．seat |