Measures _____to stop housing prices from rising too fast, but it remains to be seen whether they still work.
If penicillin had not been available, many people _____ from sickness or even small wounds.
The Japanese government stubbornly claimed the ownership of Diao Yu Islands belonging to China, ______ greatly hurt the friendship between the two peoples.
– Shall we go out for lunch? – Don’t disturb me. I ______ the letters all morning and ______ six so far.
A lot of people ______ the theory that acupuncture can produce chemicals in the body which reduce pain.
If _____ without following the doctor’s instructions, the medicine may have serious side effects.