For the present, I can’t afford ________ a car.
A. to buy B. buy C. buying D. for buying
I have been skating _______ nine o’clock.
A. for B. since C. at D. From
_____ have you been swimming? For five years.
A. How many times B. How long
C. How often D. How much
I hope _______more robots to help people in the future.
A. there were B. there will have
C. there will be D. there is
---Mary, how much did you ______ the new watch? ---300 yuan.
A. wait for B. look for
C. pay for D. care for
The idea ________ good. We can try it.
A. taste B. tastes C. sounds D. Hears
