—You may find the key to the math problem on page 107.
—Ah, it’s so simple. I wonder why I _____ of that.
| A．hadn’t thought | B．haven’t thought | C．didn’t think | D．wasn’t thinking |
When exposed to stress ,in _____ form , all of us react both chemically and physically.
| A．whichever | B．whatever | C．however | D．whenever |
When it comes to friends ,I desire ____ who share my happiness and interest.
| A．anyone | B．those | C．one | D．any |
I asked him _____we had to go .He told me just two more miles
| A．how much longer | B．how much farther | C．how long | D．how far |
In my view，_______seems to be no possibility that we shall be able to afford that big a house .
| A．that | B．there | C．it | D．this |
______your homework carefully, and some spelling mistakes can be avoided.
| A．Had you checked | B．Check | C．Checking | D．If you check |