có ai giúp mik với ạ,làm mấy câu cũng đc 86. She is determined to become a doctor. (HEART) 87. She just pretended to welcome him, then quickly left the waiting room. (MOTIONS) 88. The success of the venture cannot be guaranteed. (SUCCEED) 89. We simply must pay them the whole amount before the end of the month. (ALTERNATIVE) 90. Ours is the only company allowed to import these chemicals. (MONOPOLY)