_____ such things nowadays.
A. Rarely people can see
B. People rarely see
C. Do people rarely see
D. Rarely did people see
查看答案
Last night, not until _____ my homework _____.
A. did I finish; I went to bed
B. I had finished; did I go to bed
C. had I finished; I didn’t go to bed
D. I finished; didn’t I go to bed
It wasn’t until quite recently _____ any idea what a spaceship was like.
A. did I have
B. when did I have
C. that I had
D. didn’t I have
A whale is a mammal, and it breathes through its lungs. So once in a while _____ to the top of the water for air.
A. comes it
B. must come it
C. must it come
D. have it to come
Living in the countryside, always _____ early and _____ in the vegetable garden.
A. did he get up; worked
B. did he get up; work
C. would he get up; do
D. had he to get up; do
微信支付 
支付宝支付