The teacher explained a second time, the students should have difficulty in doing the experiment.

The teacher explained a second time,           the students should have difficulty in doing the experiment.

#31264

although

in case

so that

but

推荐题目

._______he is working much harder, he won’t have any trouble passing the entrance exams.

#34817

Ever since

In case

Even though

Now that

—I finished all my work today． —If____, you can help others with their work．

#34025

not

possible

ever

_____________ all the seats were full, he had no choice but to stand up.

#33576

For

Though

Unless

Many of them turned a deaf ear to his advice，________ they knew it to be valuable.

#30687

as if

now that

even though

so that

______ everybody knows about it, I don’t want to talk any more.

#32840

For

Even

Since

However