Điền từ thích hợp:
1.Our main agricultural__________to export world wide are rice,coffe and rubber.
2.The Earth is the only planet with a large___________of oxygen in its atmosphere.
3.To get a passport,you must send in your birth______and two photos.
4.__________different in characteristics we are,we have been mutual friends since our childhood.
5.The student are always excited________-doing the experiment in their Physics class.
6.Take an umbrella with you___________it rains on your way.
7.She never lets you cook the meals,________?
8.Indian is difficult to get used____with the chopsticks.
9.'Who is Mr.Madely?'-I don'tknow.I've never heard_____him
10.My parents make me_______for my exam.