单选题 The________________you work at your lessons,the________________results you will get.

单选题 We couldn't finish our work so early___________ your help.

单选题 The girl is__________nice ________we allwant to help her.

单选题 I think you should__________smoking.It's bad for your health.

单选题 Last night,we saw a dog _______on the ground and we were very afraid.

单选题 In order to speak English better,we ________be afraid of losing face, because the most important thing is to practice. Remember, practice makes perfect.

单选题 They agreed _________to a picnic on a sunny day.

单选题 -I have_________bad stomachache,Mr.Wang.
-I'm afraid you have to get_______X-ray.

单选题 You should look after_________,classmates.