If you successfully complete a difficult task ________ hard work, you’ll become confident.
| A．by | B．through | C．with | D．In |
Qian Xuesen devoted all his life to ________________ China’s Space Program.
| A．develop | B．developing | C．developed | D．develops |
The new mobile phone can tell me ____________ if I get lost.
| A．where am I | B．where I am | C．who am I | D．who I am |
“Hello Goat and Big Wolf : is one of _____________cartoons in China.
| A．popular | B．more popular | C．most popular | D．the most popular |
____________ students have more spare time for their hobbies now.
| A．A number of | B．The number of | C．A member of | D．Members of |
My father watches the CCTV news _________________________8 p.m. and 9:30 p.m. every day.
| A．form | B．between | C．since | D．both |