条件状语从句综合运用 — 英语填空题
题目
根据句意，用括号内所给动词的适当形式填空，使句子完整通顺。Zhang Ming is worried that if he ______ (not finish) the science report before Friday, Mr. Lin ______ (refuse) to let him join the robot competition, so unless he ______ (find) enough information tonight, he will have to stay up late working on it.