21. He is very strict with others, but he is always blind _____ his own shortcomings.
| A．for | B．to | C．with | D．In |
A ban is called for by the residents __________ people shouldn’t walk dogs in that square．
| A．what | B．whether | C．why | D．that |
The director made two films last year，one of __________ was set in Chongqing．
| A．them | B．those | C．what | D．which |
It was about ten minutes after we arrived at a small village __________ it began to pour down．
| A．when | B．where | C．that | D．how |
-- Mum，can I go on a holiday with my classmates this summer vacation?
-- OK．You __________ have a chance if you get along well with your studies．
| A．could | B．shall | C．might | D．must |
Not having found __________，he had to go home with empty hands．
| A．something | B．everything | C．anything | D．nothing |