21. The manager received a number of ___ from customers about the lack of desserts after the meals (complain) 22. The students have studied the rock _
21. The manager received a number of ___ from customers about the lack of desserts after the meals (complain) 22. The students have studied the rock ___ in their recent geography lesson. (form) 23. I regret to ___ you that you are not allowed to enter this site. (information) 24. Mark has joined this ___ … Đọc tiếp