---Why are you so happy?
--- ______ the teacher’s help, I found the answer ______ the question.
| A．Under; to | B．With; to | C．Under; of | D．With; of |
Mum ________ clothes, so I have to look after my younger sister.
| A．washes | B．is washing | C．washed | D．was washing |
There ________ a pencil and two pens on the desk.
| A．am | B．is | C．are | D．be |
—Why are you still watching TV? Please go and do your homework.
—I ________ it. Can I watch it for another ten minutes?
| A．finish | B．finished | C．have finished | D．am finishing |
Flowers and trees ________ every year. Now our city is getting more and more beautiful.
| A．are planted | B．were planted | C．have planted | D．were planting |
—The story is not easy for students to understand.
—I agree with you, ________ it’s not very long.
| A．or | B．but | C．and | D．though |