[单项选择]The ground is wet. It ______have rained last night.
A. must
B. can
C. should

[单项选择]The ground is wet. It ______have rained last night.
[A] must [B] can [C] should

[单项选择]—The ground is wet.
—It must have rained last night, ______.
A. hasn’t it
B. didn’t it
C. mustn’t it
D. isn’t it

[填空题]It rained very heavy last summer and the little 76. ______
stream near our house
became big river. It burst through the bank 77. ______
and the fields all round was soon full of 78. ______
water. Lucky, the water didn’t reach any of the 79. ______
houses in our village. And the bursting water 80. ______
from the river washed away our beautiful
wooden bridge, it was more than three 81. ______
hundreds years old and we were very sorry to 82. ______
Dose the oldest thing which we had had for so 83. ______
long time. We’re building a new one, but 84. ______
it will not be the same bridge which we had before! 85. ______