She admitted _______ trouble ________ her studies and playing basketball.

A new underground ________ Wuxi ________ Shanghai will be built soon.

Judging from what has happened here, it’s high time that we _______effective measures to prevent this.

The new lecture course differs from the old one, ________ the students aren’t required to attend lectures.

are forty five students in our class, and they are _____ interested in football.