— You must _________ your son．
— Oh, I see．He must make mistakes at school again．
| A．be angry with | B．be kind of |
| C．be strict with | D．be pleased with |
--_____ did Dave go on vacation?
-- He went to the mountains.
| A．What | B．When | C．Where | D．How |
—Thanks for your help，Mary! —________.
| A．Good | B．Don’t thank me |
| C．You're welcome | D．All right |
—_________ are these trousers?
—The trousers on the bed? They are only $15.
| A．How many | B．What color |
| C．Where | D．How much |
—Who ______ P.E? —Sam _______.
| A．like; does | B．likes; do |
| C．likes; does | D．like; do |
—Why ______ she like history? —Because ________ interesting.
| A．do; it | B．does; it |
| C．does; its | D．does; it’s |