26. The leaves of this tree turn red ____ , so we visit it at the end of every October.
| A．in the autumn | B．in autumn | C．in early autumn | D．in late autumn |
– 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 |
The Chinese government has promised to do ______ lies in its power to ease the pressure of high housing price for average-income families.
| A．that | B．what | C．where | D．which |
He volunteered to work in a remote mountainous village in West China last year, which is still _____ on foot now.
| A．available | B．acceptable | C．admirable | D．accessible |