— I'm leaving tomorrow.
— Oh, what a pity! I won't be able to see you off. I ____ a tele-conference the whole morning.
A．have B．am having
C．will be having D．will have had
On June 16, 2012, it arrested the world’s attention ______ Shenzhou 9 spacecraft was successfully sent into the sky with the first Chinese woman astronaut.
A．that B．what C．if D．why
New traffic rules that took effect on January l, 2013 are much stricter______ than in the past．
A．that B．this C．those D．what
Rock climbing is ___ great fun. You will get close to ____ nature and take adventures at the same time.
A．/; / B．a; / C．a; the D．/; the
He is said ______ in the supermarket when he was doing shopping yesterday.
A．to have been badly treated B．treating badly
C．being badly treated D．to be treated badly
Pieces of bamboo or wood ________ books between 2nd and 5th century AD.
A. used to formed B. used to form
C. were used to form D. used to beforming
