86. It's difficult for me to learn English.                                                          (DIFFICULTY)   …………………………………………………….…………………… 87. Students spent eight months revising for this exam.                               TOOK  …………………………………………………….…………………… 88.  What is the distance between your house and Thanh Hoa city?             FAR  …………………………………………………….…………………… 89. What is the price of these color pencils?                                                  COST…………………………………………………….…………………… 90. Is there a library in your school?                                                                (HAVE)  …………………………………………………….……………………

86 I have difficulty in learning English

87 Revising for this exam took students 8 months

88 How far is it from your house to TH city?

89 How much do these color pencils cost?

90 Does your school have a library?