He has a toothache that's ...... he can't eat sweets. A)when B)why C)who The ..... is missing. A)box's top B)box top's C)top of the box Our parents love ..... very much. A)we B)ours C)us There are fifteen ....... in the classro...

He has a toothache that's ...... he can't eat sweets. A)when B)why C)who The ..... is missing. A)box's top B)box top's C)top of the box Our parents love ..... very much. A)we B)ours C)us There are fifteen ....... in the classroom. A)child B)childrens C)children You mustn't ....... late for school again. A)being B)to be C)be This book is not ...... . It's Sue's. A)mine B)me C)her Do you know how ....... this laptop? A)used to B)to use C) to used You ...... call him now. You can do it later. A)not have to B)haven't to C)don't have to