When deeply absorbed in work, _____ he often was, he would forget all about eating or sleeping.
| A．that | B．which | C．where | D．when |
— Can you explain ____ you have been late for school several times this term?
— Sorry, but it is the first time that I have been late this week.
| A．why is it that | B．how it is that | C．why it is that | D．how is it that |
________ of you figures out the answer will be given a pack of candies weighting 2 pounds as a gift.
| A．Anyone | B．Whoever | C．Those | D．Who |
After _________ all the difficulties, he has developed a habit of facing everything bravely, and is now living a simple but full life.
| A．looking through | B．going through | C．looking up | D．going up |
President Hu Jintao urged every effort ________ to rescue and treat the injured German tourists in a traffic accident in Tianjin on the morning of Oct1, 2012.
| A．is made | B．must be made | C．be made | D．should make |
While ______ himself in the newspaper in a cafe , he got his pocket picked.
| A．having buried | B．buried | C．burying | D．to be buried |