—I’m going to cut the big tree down? —What ________ ?
| A．by | B．to |
| C．with | D．at |
If penicillin had not been available, many people _____ from sickness or even small wounds.
| A．would die | B．would have died |
| C．will have died | D．might die |
The Japanese government stubbornly claimed the ownership of Diao Yu Islands belonging to China, ______ greatly hurt the friendship between the two peoples.
| A．that | B．what | C．which | D．it |
– Shall we go out for lunch?
– Don’t disturb me. I ______ the letters all morning and ______ six so far.
| A．write; wrote |
| B．wrote; have written |
| C．was writing; wrote |
| D．have been writing; have written |
A lot of people ______ the theory that acupuncture can produce chemicals in the body which reduce pain.
| A．correspond to | B．relate to |
| C．subscribe to | D．refer to |
If _____ without following the doctor’s instructions, the medicine may have serious side effects.
| A．taken | B．to be taken | C．taking | D．being taken |