Some people are good at _____ voices on the phone while others ______.
A. knowing; aren’t B. recognizing; don’t C. knowing; don’t D. recognizing; aren’t
Pandas are native ______ China.
A. with B. to C. for D. in
No product is allowed to go into the market if it fails to _____ the quality standard.
A. live B. come up to C. meet D. go through
When was it _____ your parents took you to Hangzhou?
A. before B. if C. which D. that
It is everyone’s duty to ______ our school a pleasant place to learn in.
A. find B. set C. keep D. make
Ever since my brother graduated from the university, he _______ in the present company for 15 years and he is now chief engineer of the company .
A. worked B. has been working C. is working D. works
