With their new lock， you __________ search for keys in your bag any more． Isn't it cool？（ ）
A．needn'tB．can'tC．mustn'tD．shouldn't
This is a heartwarming story about a boy ______ saved his mother's life．（ ）
A．whichB．whoC．whoseD．whom
Could you please tell me ______？
Sorry，I don't know．You may surf the internet．（ ）
A．who wrote journey to the west
B．is Tom Sawyer a story from Europe
C．how high is Qomolangma
D．the elephant is one of Thailand's symbols．
Ma Long won the men's singles final match at the 2017 World Table Tennis Championships．
______ exciting news it is!（ ）
A．WhatB．What aC．What anD．How
About thirty eight people ______，in Manila Casino Hotel attacked on June 2nd．（ ）
A．killB．kills
C．killedD．were killed
I saw Mr. Wu in the street at ten yesterday morning．
That's impossible．He a school leavers' party with us then．（ ）
A．hasB．hadC．was havingD．has had