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In 1989 an international law was passed to stop people _____ waste into the sea.
| A．to put | B．putting | C．not to put | D．not putting |
The old man used _____ in front of his house and he has got used to _______ like that.
| A．to sit; doing | B．to sitting; do |
| C．to sit; do | D．to sitting; doing |
Mr. Brown, ______ chairman of the trade union, will visit our factory in _____ month of May.
| A．/; the | B．a; the | C．the; / | D．the; the |
He has called several times this morning, ____ there is something very urgent.
| A．really | B．especially | C．obviously | D．terribly |
You have to wear special clothing, a helmet and a life jacket ____ your raft gets turned upside down or sinks.
| A．so that | B．in order that | C．now that | D．in case |
I wonder if ____ to come over to my family after work.
| A．you are convenient | B．it is convenient for you |
| C．it’s convenient of you | D．there’s convenient for you |