TOEFL STRUCTURE TEST SAMPLE

The following is one of the toefl test structure samples.

01. If a ruby is heated it ________ temporarily lose its color.
A. would
B. will
C. does
D. has

The correct answer of the question above is B. will. The explanation is as follows:

The question above belongs to the problem of conditional sentence. We know that there are 3 types of conditional sentences. The type above is called conditional sentence type 1. The pattern of the conditional sentence type one is :

If + V (present), S + will + V1....

The if clause of the conditional sentence above contains a verb which is present (is heated); therefore the verb of the main clause is will . That is why the correct answer is B. will .